Juniper QFX5220 Hardware Guide

QFX5220 Switch Hardware Guide

Published

2021-02-22

Juniper Networks, Inc. 1133 Innovation Way Sunnyvale, California 94089 USA 408-745-2000 www.juniper.net

Juniper Networks, the Juniper Networks logo, Juniper, and Junos are registered trademarks of Juniper Networks, Inc. in the United States and other countries. All other trademarks, service marks, registered marks, or registered service marks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.

QFX5220 Switch Hardware Guide

The information in this document is current as of the date on the title page.

YEAR 2000 NOTICE

Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.

END USER LICENSE AGREEMENT

The Juniper Networks product that is the subject of this technical documentation consists of (or is intended for use with) Juniper Networkssoftware. Use ofsuch software is subjectto the termsand conditions ofthe End User LicenseAgreement (“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you agree to the terms and conditions of that EULA.

About the Documentation | x

Documentation and Release Notes | x

Using the Examples in This Manual | x

Merging a Full Example | xi

Merging a Snippet | xii

Documentation Conventions | xii

Documentation Feedback | xv

Requesting Technical Support | xv

Self-Help Online Tools and Resources | xvi

Creating a Service Request with JTAC | xvi

iii

Overview

QFX5220 System Overview | 18

QFX5220-128C Switch Description | 18

Benefits of the QFX5220-128C | 19

QFX5220-32CD Switch Description | 20

Benefits of the QFX5220-32CD | 20

QFX5220 Hardware Component Overview | 21

System Software | 22

QFX5220 Component Redundancy | 22

QFX5220 Field-Replaceable Units | 23

QFX5220-32CD Port Panel | 24

Network Ports | 25

Setting Port Speed and Channelization | 25

QFX5220-32CD Network LEDs | 27

QFX5220-128C Port Panel | 29

Overview | 29

Network Ports | 30

Port Configurations | 31

100-Gbps Port Configuration | 44

40-Gbps Port Configuration | 45

4 x 25 Gbps Port Channelization | 45

Delete 4 x 25 Gbps or 4 x 10 Gbps Port Channelization | 46

QFX5220-128C Network LEDs | 46

QFX5220 Management Panel | 48

QFX5220-128C Management Panel Overview | 49

QFX5220-32CD Management Panel Overview | 49

QFX5220-32CD Management Panel LEDs | 50

QFX5220 Chassis Status LEDs | 51

RJ-45 Management Port LEDs | 54

QFX5220 Cooling System | 55

QFX5220-128C Cooling System Description | 55

Fan Modules | 55

QFX5220-128C Fan Module LED | 57

QFX5220-32CD Cooling System Description | 57

Fan Modules | 58

Do Not Install Components with Different Airflow or Wattage in the Switch | 60

QFX5220-32CD Fan Module LED | 61

Fan Module Status | 62

QFX5220 Power System | 64

QFX5220 AC Power Supply Modules Description | 66

QFX5220 AC Power Specifications | 68

AC Power Cord with Type C13 Coupler Specifications | 69

AC Power Cord with Type C15 Coupler Specifications | 71

QFX5220 AC Power Supply LEDs | 73

QFX5220 DC Power Supply Description | 74

QFX5220 DC Power Specifications | 76

QFX5220-128C DC Power Cable Specification | 77

QFX5220-128C DC Power Supply LED | 78

QFX5220-32CD-D DC Power Supply LED | 79

Site Planning, Preparation, and Specifications

QFX5220 Site Preparation Checklist | 82

QFX5220 Site Guidelines and Requirements | 83

QFX5220 Environmental Requirements and Specifications | 84

General Site Guidelines | 85

QFX5220 Grounding Cable and Lug Specifications | 86

QFX5220 Clearance Requirements for Airflow and Hardware Maintenance | 87

QFX5220 Chassis Physical Specifications | 88

Site Electrical Wiring Guidelines | 88

QFX5220 Rack Requirements | 89

QFX5220 Cabinet Requirements | 90

QFX5220 Network Cable and Transceiver Planning | 92

Determining QFX5220 Optical Interface Support | 92

Cable Specifications for QSFP+ and QSFP28 Transceivers | 93

Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 95

Signal Loss in Multimode and Single-Mode Fiber-Optic Cables | 95

Attenuation and Dispersion in Fiber-Optic Cable | 95

Calculating Power Budget and Power Margin for Fiber-Optic Cables | 96

How to Calculate Power Budget for Fiber-Optic Cable | 97

How to Calculate Power Margin for Fiber-Optic Cable | 97

QFX5220 Management Cable Specifications and Pinouts | 99

Cable Specifications for Console and Management Connections for the QFX Series | 99

RJ-45 Management Port Connector Pinout Information | 100

Console Port Connector Pinouts for the QFX Series | 100

QSFP-DD Port Connector Pinout Information | 101

QSFP+, QSFP28, and QSFP56 Port Connector Pinout Information | 105

SFP, SFP+, and SFP28 Port Connector Pinout Information | 107

USB Port Specifications for the QFX Series | 108

Initial Installation and Configuration

QFX5220 Installation Overview | 111

Overview of Installing the QFX5220 | 111

QFX5220 Installation Safety Guidelines | 112

Unpacking and Mounting the QFX5220 | 112

Unpacking a QFX5220 | 113

Mounting a QFX5220 in a Rack or Cabinet | 116

Before You Begin Rack Installation | 117

Four-Post Installation Procedure for QFX5220-128C | 118

Four-Post Installation Procedure for QFX5220-32CD | 120

Four-Post Cabinet Installation for QFX5220-32CD | 122

EMI Panel Installation on QFX5220-128C | 125

Connecting the QFX5220 to External Devices | 128

Ground the QFX5220-128C | 129

Connect Power to the QFX5220-128C | 129

Ground the QFX5220-32CD and Connect Power | 132

Connect a Device to a Network for Out-of-Band Management | 133

Connect a Device to a Management Console Using an RJ-45 Connector | 134

Connecting the QFX5220 to Power | 136

How to Connect AC Power to a QFX5220 | 136

How to Connect DC Power to a QFX5220-128C | 139

How to Connect DC Power to a QFX5220-32CD-D | 142

Before You Begin | 142

Connecting DC Power to a QFX5220-32CD-D | 143

Performing the Initial Software Configuration for QFX5220 Switches | 147

Maintaining Components

Maintaining QFX5220 Cooling System | 151

How to Remove a Fan Module from a QFX5220 | 151

How to Remove a Fan Module in a QFX5220 | 153

Maintaining the QFX5220 Power System | 155

How to Remove a Power Supply from a QFX5220 | 155

How to Install an AC Power Supply in a QFX5220 | 158

Maintaining Transceivers and Fiber Optic Cables on a QFX5220 | 161

Remove a Transceiver | 161

Install a Transceiver | 164

Disconnect a Fiber-Optic Cable | 166

Connect a Fiber-Optic Cable | 167

vii

How to Handle Fiber-Optic Cables | 168

Powering Off a QFX5220 | 169

Removing the EMI Panel from QFX5220-128C | 171

Troubleshooting Hardware

Troubleshooting the QFX5220 | 175

QFX5220 Troubleshooting Resources Overview | 175

QFX5220 Alarm Messages Overview | 176

Chassis Alarm Messages | 177

Configuration Changes Leading to Unexpected QFX5220 Behavior | 179

How to Troubleshoot QFX5220-128C Port Configuration Problems | 180

How to Troubleshoot QFX5220-128C Channelization Problems | 181

Contacting Customer Support and Returning the Chassis or Components

Contact Customer Support to Obtain Return Material Authorization | 184

Returning the QFX5220 Chassis or Components | 185

Locating the Serial Number on a QFX5220 Device or Component | 185

Listing the Chassis and Component Details Using the CLI | 186

Locating the Chassis Serial Number ID Label on a QFX5220 | 187

Locating the Serial Number ID Labels on FRU Components | 188

Removing the Solid-State Drives for RMA | 190

How to Return a Hardware Component to Juniper Networks, Inc. | 193

Guidelines for Packing Hardware Components for Shipment | 194

Packing a QFX5220 Device or Component for Shipping | 194

Packing a QFX5220 Switch for Shipping | 195

Packing QFX5220 Components for Shipping | 196

Safety and Compliance Information

General Safety Guidelines and Warnings | 199

Definitions of Safety Warning Levels | 200

Qualified Personnel Warning | 203

Warning Statement for Norway and Sweden | 204

viii

Fire Safety Requirements | 204

Fire Suppression | 204

Fire Suppression Equipment | 204

Installation Instructions Warning | 206

QFX5220 Installation Safety Guidelines | 206

Restricted Access Warning | 208

Ramp Warning | 210

Rack-Mounting and Cabinet-Mounting Warnings | 211

Grounded Equipment Warning | 217

Laser and LED Safety Guidelines and Warnings | 218

General Laser Safety Guidelines | 218

Class 1 Laser Product Warning | 219

Class 1 LED Product Warning | 220

Laser Beam Warning | 221

Radiation from Open Port Apertures Warning | 222

Maintenance and Operational Safety Guidelines and Warnings | 223

Battery Handling Warning | 224

Jewelry Removal Warning | 225

Lightning Activity Warning | 227

Operating Temperature Warning | 228

Product Disposal Warning | 230

General Electrical Safety Guidelines and Warnings | 231

Action to Take After an Electrical Accident | 232

Prevention of Electrostatic Discharge Damage | 233

AC Power Electrical Safety Guidelines | 234

AC Power Disconnection Warning | 236

DC Power Electrical Safety Guidelines | 237

DC Power Copper Conductors Warning | 238

DC Power Disconnection Warning | 239

DC Power Grounding Requirements and Warning | 241

DC Power Wiring Sequence Warning | 243

DC Power Wiring Terminations Warning | 246

Multiple Power Supplies Disconnection Warning | 249

TN Power Warning | 250

Agency Approvals and Compliance Statements for the QFX5200 and QFX5220 | 250

Agency Approvals for the QFX Series | 251

About the Documentation

IN THIS SECTION

Documentation and Release Notes | x

Using the Examples in This Manual | x

Documentation Conventions | xii

Documentation Feedback | xv

Requesting Technical Support | xv

Use this guide to plan, install, perform initial software configuration, perform routine maintenance, and to troubleshoot QFX5220 switches.

After completing the installation and basic configuration procedures covered in this guide, refer to the Junos OS documentation for further software configuration.

Documentation and Release Notes

To obtain the most current version of all Juniper Networks®technical documentation, see the product documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.

If the information in the latest release notes differs from the information in the documentation, follow the product Release Notes.

Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts. These books go beyond the technical documentation to explore the nuances of network architecture, deployment, and administration. The current list can be viewed at https://www.juniper.net/books.

Using the Examples in This Manual

If you want to use the examples in this manual, you can use the load merge or the load merge relative command. These commands cause the software to merge the incoming configuration into the current candidate configuration.The example does not become active untilyou commit the candidate configuration.

If the example configuration contains the top level of the hierarchy (or multiple hierarchies), the example is a full example. In this case, use the load merge command.

If the example configuration does not start at the top level of the hierarchy, the example is a snippet. In this case,use the load merge relative command. These procedures aredescribed in the following sections.

Merging a Full Example

To merge a full example, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration example into a text file, save the file with a name, and copy the file to a directory on your routing platform.

For example, copy the following configuration to a file and name the file ex-script.conf. Copy the ex-script.conf file to the /var/tmp directory on your routing platform.

system {

scripts {

commit {

file ex-script.xsl;

}

} } interfaces {

fxp0 {

disable; unit 0 {

family inet {

address 10.0.0.1/24;

}

} }

2. Merge the contents of the file into your routing platform configuration by issuing the load merge configuration mode command:

[edit] user@host# load merge /var/tmp/ex-script.conf load complete

Merging a Snippet

To merge a snippet, follow these steps:

1. From the HTML or PDF version of the manual, copy a configuration snippet into a text file, save the file with a name, and copy the file to a directory on your routing platform.

For example, copy the following snippet to a file and name the file ex-script-snippet.conf. Copy the ex-script-snippet.conf file to the /var/tmp directory on your routing platform.

commit {

file ex-script-snippet.xsl; }

2. Move to the hierarchy level that is relevant for this snippet by issuingthe following configuration mode command:

[edit] user@host# edit system scripts [edit system scripts]

xii

3. Merge the contents of the file into your routing platform configuration by issuing the load merge relative configuration mode command:

[edit system scripts] user@host# load merge relative /var/tmp/ex-script-snippet.conf load complete

For more information about the load command, see CLI Explorer.

Documentation Conventions

Table 1 on page xiii defines notice icons used in this guide.

Table 1: Notice Icons

xiii

DescriptionMeaningIcon

Indicates important features or instructions.Informational note

Caution

Indicates a situation that might result in loss of data or hardware damage.

Alerts you to the risk of personal injury or death.Warning

Alerts you to the risk of personal injury from a laser.Laser warning

Indicates helpful information.Tip

Alerts you to a recommended use or implementation.Best practice

Table 2 on page xiii defines the text and syntax conventions used in this guide.

Table 2: Text and Syntax Conventions

ExamplesDescriptionConvention

Fixed-width text like this

Italic text like this

Represents text that you type.Bold text like this

Represents output that appears on the terminal screen.

Introduces oremphasizes important

•

new terms.

Identifies guide names.

•

Identifies RFC and Internet draft

•

titles.

To enter configuration mode, type the configure command:

user@host> configure

user@host> show chassis alarms

No alarms currently active

A policy term is a named structure

•

that defines match conditions and actions.

Junos OS CLI User Guide

•

RFC 1997, BGP Communities

•

Attribute

Table 2: Text and Syntax Conventions (continued)

xiv

ExamplesDescriptionConvention

Italic text like this

Text like this

< > (angle brackets)

| (pipe symbol)

Represents variables (options for which you substitute a value) in commands or configuration statements.

Represents names of configuration statements, commands, files, and directories; configuration hierarchy levels; or labels on routing platform components.

variables.

Indicates a choice between the mutually exclusive keywords or variables on either side of the symbol. The set of choices is often enclosed in parentheses for clarity.

Configure the machine’s domain name:

[edit] root@# set system domain-name

domain-name

To configure a stub area, include

•

the stub statement at the [edit protocols ospf area area-id]

hierarchy level.

The console port is labeled

•

CONSOLE.

stub <default-metric metric>;Encloses optional keywords or

broadcast | multicast

(string1 | string2 | string3)

# (pound sign)

[ ] (square brackets)

Indention and braces ( { } )

; (semicolon)

GUI Conventions

Indicates a comment specified on the same line as the configuration statement to which it applies.

Encloses a variable for which you can substitute one or more values.

Identifies a level in the configuration hierarchy.

Identifies a leaf statement at a configuration hierarchy level.

rsvp { # Required for dynamic MPLS only

community name members [ community-ids ]

[edit] routing-options {

static {

route default {

nexthop address; retain;

}

Table 2: Text and Syntax Conventions (continued)

ExamplesDescriptionConvention

Bold text like this

> (bold right angle bracket)

Represents graphical user interface (GUI) items you click or select.

Separates levels in a hierarchy of menu selections.

In the Logical Interfaces box, select

•

All Interfaces.

To cancel the configuration, click

•

Cancel.

In the configuration editor hierarchy, select Protocols>Ospf.

Documentation Feedback

We encourage you to provide feedback so that we can improve our documentation. You can use either of the following methods:

Online feedback system—Click TechLibrary Feedback, on the lower right of any page on the Juniper

•

Networks TechLibrary site, and do one of the following:

Click the thumbs-up icon if the information on the page was helpful to you.

•

Click the thumbs-down icon if the information on the page was not helpful to you or if you have

•

suggestions for improvement, and use the pop-up form to provide feedback.

E-mail—Send yourcomments to techpubs-comments@juniper.net. Include the document or topic name,

•

URL or page number, and software version (if applicable).

Requesting Technical Support

Technical product support is available through the Juniper Networks Technical Assistance Center (JTAC). If you are a customer with an active Juniper Care or Partner Support Services support contract, or are

covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC.

JTAC policies—Fora complete understanding of our JTAC procedures andpolicies, review the JTAC User

•

Guide located at https://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.

Product warranties—Forproduct warranty information, visit https://www.juniper.net/support/warranty/.

•

JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week,

•

365 days a year.

Self-Help Online Tools and Resources

For quick and easy problem resolution, Juniper Networks has designed an online self-service portal called the Customer Support Center (CSC) that provides you with the following features:

Find CSC offerings: https://www.juniper.net/customers/support/

•

Search for known bugs: https://prsearch.juniper.net/

•

xvi

Find product documentation: https://www.juniper.net/documentation/

•

Find solutions and answer questions using our Knowledge Base: https://kb.juniper.net/

•

Download the latest versions of software and review release notes:

•

https://www.juniper.net/customers/csc/software/

Search technical bulletins for relevant hardware and software notifications:

•

https://kb.juniper.net/InfoCenter/

Join and participate in the Juniper Networks Community Forum:

•

https://www.juniper.net/company/communities/

Create a service request online: https://myjuniper.juniper.net

•

To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool:

https://entitlementsearch.juniper.net/entitlementsearch/

Creating a Service Request with JTAC

You can create a service request with JTAC on the Web or by telephone.

Visit https://myjuniper.juniper.net.

•

Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).

•

For international or direct-dial options in countries without toll-free numbers, see

https://support.juniper.net/support/requesting-support/.

CHAPTER

Overview

QFX5220 System Overview | 18

QFX5220-32CD Port Panel | 24

QFX5220-128C Port Panel | 29

QFX5220 Management Panel | 48

QFX5220 Cooling System | 55

QFX5220 Power System | 64

QFX5220 System Overview

IN THIS SECTION

QFX5220-128C Switch Description | 18

Benefits of the QFX5220-128C | 19

QFX5220-32CD Switch Description | 20

Benefits of the QFX5220-32CD | 20

QFX5220 Hardware Component Overview | 21

System Software | 22

QFX5220 Component Redundancy | 22

QFX5220 Field-Replaceable Units | 23

The QFX5220 line of switches offer two models for environments requiring 100-Gigabit Ethernet and 400-Gigabit Ethernet speeds.

QFX5220-128C Switch Description

The QFX5220-128C offers 128 ports of 100-Gigabit Ethernet in a 4-U form factor. With 12.8 terabits per second (Tbps)bandwidth, the QFX5220-128C is an optimal choicefor spine-and-leaf IP fabric deployments as well as metro use cases. The 100-Gigabit Ethernet ports can be configured either for 100-Gbps or 40-Gbps speeds. The 100-Gbps ports can also be channelized into 4 x 25 Gbps or 4 x 10 Gbps. There are two dedicated small-form factor plugable plus (SFP+) ports for 10 Gigabit or 1 Gigabit Ethernet support.

An Intel Xeon D-1518 processor drives the QFX5220 control plane, which runs the Junos OS Evolved software. The Junos OS Evolved software image is stored on two internal 50-GB solid-state drives (SSDs). The QFX5220-128C is available with ports-to-FRUs airflow (Airflow Out) and with AC or DC power supplies.

Figure 1: QFX5220-128C Front Panel

Figure 2: QFX5220-128C FRU Panel

Benefits of the QFX5220-128C

Serves thespine layer needs of a wide rangeof enterprises. Examples include: cloud and high-performance

•

computing data centers; Software as a Service (SaaS) providers; streaming video service providers; cable operators; financial service providers and enterprises that run large-scale Web applications, analytics, and deep learning workloads.

Serves as a DC edge or DCI platform for metro MPLS use cases.

•

Supports IEEE 1588 Precision Time Protocol (PTP), Transparent Clock, and hardware timestamping for

•

distributing precise time and frequency over packet networks. PTP is an important prerequisite in real-time sensitive workloads such as those employed in financial trading, real-time video streaming, and broadcasting networks.

Aligns well with the needs of environments whose aggregate traffic comprises lossless classes of traffic

•

such as access toa remote flash storage, support for advanced congestion control, and flow-awaretraffic scheduling support.

Supports zero touch provisioning at the ports, which automates provisioning and deployment with

•

minimal manual intervention, saving time and effort for network operators.

Provides improved power efficiency and lowered costs per 100-Gigabit Ethernet port making this the

•

industry best-in-class solution to support ever-expanding bandwidth needs.

QFX5220-32CD Switch Description

The QFX5220-32CD offers 32 ports of 400-Gigabit Ethernet in a low-profile 1-U form factor. With

12.8-Tbps bandwidth,the QFX5220-32CD is an optimalchoice for very large, dense, and fastspine-and-leaf

IP fabric deployments, as well as metro use cases. The high-speed ports support a wide variety of port configurations that include speeds of 400 Gbps, 100 Gbps, 25 Gbps, 40 Gbps, and 10 Gbps.

An Intel Xeon D-1500 processor drives the QFX5220 control plane, which runs the Junos OS Evolved software. The Junos OS Evolved software image is stored on two internal 50-GB solid-state drives (SSDs).

The QFX5220-32CD is available with either ports-to-FRUs or FRUs-to-ports airflow and with AC or DC power supplies. See Figure 3 on page 20 and Figure 4 on page 20.

Figure 3: Front Panel View of the QFX5220-32CD

Figure 4: FRU Panel View of the QFX5220-32CD

Benefits of the QFX5220-32CD

Reduces compute-intensive workloads for hyperscale cloud and high-performance computing (HPC)

•

data centers.Examples of these compute-intensive workloads include AI, machine learning,deep learning applications, and storage disaggregation workloads such as Non-Volatile Express over Fabrics (NVMe over Fabrics).

Enables data center re-architecture with flattened pods that slash switch hop latency.

•

Serves as a DC edge or DCI platform for metro MPLS use cases.

•

Enables a fast response by demanding applications, such as those encountered in financial exchanges

•

by reducing intracluster switch latency.

Allows current Junos OS users to seamlessly migrate to Junos OS Evolved Linux software. With Junos

•

OS Evolved, you can run Linux using your familiar Junos OS CLI, and run third-party Linux applications with Juniper Extension Toolkit (JET) API support, telemetry support formonitoring the DC network, and support for module-level in-service software upgrade (ISSU).

Saves you energy costs by highly reducing power consumption per Gbps of network traffic passing

•

through the switch.

Provides an extensive roadmap to new features and functions, such as:

•

Advanced Precision Time Protocol (PTP) support (enhanced mirroring with PTP) for running real-time

•

analytics on network flows

Comprehensive Remote Direct Memory Access over Converged Ethernet version 2 (RoCEv2)

•

Advanced congestion control and flow-aware traffic scheduling

•

Support for container networking and segment routing

•

Scale-out load balancing and multipathing

•

Support for advanced network instrumentation adopted by cloud data centers

•

QFX5220 Hardware Component Overview

The QFX5220 supports the components listed in Table 3 on page 21.

Table 3: QFX5220 Hardware Components

Chassis

Fan module

QFX5220-32CD

QFX5220-128C

QFX5220-32CD

QFX5220-128C

QFX5220-32CD-CHAS

QFX5220-128C-CHAS

QFX5220-32CD-FANAI (FRUs-to-ports airflow)

QFX5220-32CD-FANAO (ports-to-FRUs airflow)

CLI OutputSpare Juniper Model NumberChassis ModelComponent

QFX5220-32CD

QFX5220-128C

Fan tray n fan-n Back-to-front airflow - AFI

NOTE: The QFX5220-128C is

not available in AFI airflow.

QFX5220-128C-FANAO

Fan tray n fan-n Front-to-back airflow - AFO

Table 3: QFX5220 Hardware Components (continued)

CLI OutputSpare Juniper Model NumberChassis ModelComponent

QFX5220-32CDPower supplies

QFX5220-128C-AFO

JPSU-1600W-1UACAFI (FRUs-to-ports airflow)

JPSU-1600W-1UACAFO (ports-to-FRUs airflow)

JPSU-1600W-1UDCAFI (FRUs-to-ports airflow)

JPSU-1600W-1UDCAFO (ports-to-FRUs airflow)

JPSU-1600W-AC-AFO

JPSU-1600W-DC-AFO

AC AFI 1600W PSU

AC AFO 1600W PSU

DC AFI 1600W PSU

DC AFO 1600W PSU

AC AFO 1600W PSU

NOTE: The QFX5220-128C is

not available in AFI airflow.

System Software

The Junos OS Evolved software on the QFX5220 provides Layer 2 and Layer 3 switching, routing, and security services. Junos OS Evolved is installed on the switch solid-state drive (SSD).

For more information about which features are supported on QFX Series devices, see Feature Explorer.

You managethe switch using the JunosOS CLI, accessiblethrough the console and out-of-bandmanagement ports on the device.

The QFX5220-32CD is supported on Junos OS Evolved Release 19.1R1 and later. The QFX5200-128C is supported on Junos OS Evolved Release 19.2R1 and later.

The DC version, QFX5220-32CD-D, is supported on Junos OS Evolved Release 19.3R1 and later.

QFX5220 Component Redundancy

The following hardware components provide redundancy on a QFX5220 switch:

QFX5220-32CD power supplies—The QFX5220-32CD switches have one or two power supplies. Each

•

power supply provides power to all components in the switch. If two power supplies are installed, the two power supplies provide full power redundancy to the device. If one power supply fails or is removed, the second power supply balances the electrical load without interruption.

To provide power redundancy to the system, both power supplies must be installed. Connect power source feed A to one power supply and power source feed B to the second power supply.

CAUTION: Do not connect feed A and feed B to the same power supply input

terminal.

QFX5220-128C powersupply modules—The QFX5220-128Cswitches have two to fourpower supplies.

•

The power supply modules are used in 2 + 2 redundancy mode. The system can run on two power supplies without redundancy. If one power supply failsor isremoved, the other power supplies balances the electrical load without interruption.

QFX5220-32CD cooling system—The QFX5220-32CD switch models have six fan modules and can

•

operate with one fan not in operation (5+1 redundancy). If more than one fan module fails and is unable to keep the QFX5220-32CD within the desired temperature thresholds, chassis alarms occur and the QFX5220-32CD switch can shut down.

QFX5220-128C cooling system—This switch model has 12 fans in 6 fan modules. There is one fan out

•

of the 12 fans forredundancy. This isknown as (5x2+1)+1redundancy). Any additionalfan failures cause the switch to overheat, chassis alarms to occur and shutdown the switch.

QFX5220 Field-Replaceable Units

Field-replaceable units (FRUs) are components that you can replace at your site. The QFX5220 device FRUs are hot-insertable and hot-removable: you can remove and replace one of them without powering off the switch or disrupting the switching function.

CAUTION: Replace a failed power supply with a new power supply within 3 minutes

of removal to prevent chassis overheating. The QFX5220-32CD switch continues to operate with only one power supply running. The QFX5220-128C can operate with only two power supplies running. For best performance, we advise replacing failed power supplies and fan modules as quickly as possible to protect against another failure.

Table 4 on page 24 lists the FRUs for the QFX5220 device and actions to take before removing them.

Table 4: FRUs in a QFX5220 Switch

Required ActionFRU

None.Power supplies

None.Fan modules

Optical transceivers

NOTE: If you have a Juniper Care service contract, register any addition, change, or upgrade of

hardware componentsat https://www.juniper.net/customers/support/tools/updateinstallbase/. Failure to do so can result in significant delays if you need replacement parts. This note does not apply if you replace existing components with the same type of component.

RELATED DOCUMENTATION

QFX5220 Management Panel | 48

QFX5220 Cooling System | 55 QFX5220 Power System | 64

None. We recommend that you disable the interface using the set interfaces interface-name disable command before you remove the transceiver. See Disconnect a Fiber-Optic Cable.

QFX5220-32CD Port Panel

IN THIS SECTION

Network Ports | 25

Setting Port Speed and Channelization | 25

QFX5220-32CD Network LEDs | 27

The port panel of the QFX5220-32CD has 32 high-speed ports that support transmission at 400-Gbps,

g051050

TOD

ALM

SYS

10M

OUT

PPS

10 3 54 76 8 110 1312 1514 1716 1918 2 120 2322 2524 2726 2928 3130 33322 9 1

RESET

MGMTCON

1 2

1011

100-Gbps, or 25-Gbps speeds. It also has 2 dedicated ports for 10 Gbps.

7—1— Reset button (do not use unless directed by JTAC)RJ-45 connection to grandmaster clock

8—2— Chassis serial number pull-outChassis status LEDs

9—3— 10 Gigabit Ethernet ports–SFP+ cages32 high-speed ports-QSFP-DD cages

RJ-45 management port (100 Mbps/1000 Mbps/ 10000 Mbps)

10—4— Clock input and output connectors (10 MHz and 1

PPS)

11—5— ESD grounding pointRJ-45 console port

6—USB port (USB 2.0/3.0 standard)

Network Ports

The QFX5220-32CD network ports (0 to 31) support:

400-Gbps QSFP-DD direct attach copper (DAC) cables

•

400 Gbps active optic cable (AOC) (starting in Junos OS Evolved Release 19.3R2)

•

100-Gbps QSFP28 transceivers

•

100 Gbps active optic break outcables (AOCBO) QSFP28 to four SFP25G interfaces

•

40-Gbps QSFP+ to SFP+ DACBO cables (40-Gbps breaks out to 4 independent 10-Gbps

•

connections)–Junos OS Evolved Release 20.2R1 and later

The 10-Gbps network ports 32 and 33 support small form-factor plus (SFP+) transceivers.

Setting Port Speed and Channelization

The default port speed for ports 0 through 31 is 400 Gbps. Only QSFP-DD optics inserted in these ports will link without configuration. See Table 5 on page 26.

Table 5: QFX5220-32CD Port Speed Autodetection

Sets Default Speed toTransceiver, DAC, AOC, DACBO, or AOCBO

400 Gbps, link upQSFP-DD

400 Gbps, link downQSFP28

400 Gbps, link downQSFP

10 Gbps, link upSFP+ (ports 32 and 33 only) and management port

NOTE: The QFX5220-32CD does not support autonegotiation between devices.

If a port already has a speed configured, you can manually configure the ports. To set the speed, use the set chassis fpc FPC number pic pic number port port number speed 25|40|100|200|400 configuration mode CLI command. For example, to set port 2 to 100 Gbps:

[edit chassis]

user@host#set chassis fpc 0 pic 0 port 2 speed 100g

NOTE: On QFX5220-32CD devices, there is a single FPC and PIC, which is always 0.

After you set a port speed, you can channelize the port into 4 independent 25-Gigabit Ethernet interfaces by configuring the number of subports and speed. You should use the set chassis fpc FPC number pic pic number port port number number-of-sub-ports 1|2|3|4 command. For example, to configure 100-Gbps port 4 to four independent 25-Gbps interfaces:

[edit chassis]

user@host#set chassis fpc 0 pic 0 port 4 speed 25g number-of-sub-ports 4

Be sure to save and commit your changes.

WARNING: An incorrectly configured port can cause unexpected port and switch

g051096

2928 3130 333 2

Link/Activity

LED

Link/Activity

LED

Link/Activity

Status LEDs

Status

LED

Status

LED

behavior. The system software doesnot check whether the port speed or the attached optic are supported at the time of the commit. Use the show chassis alarms and the show chassis pic fpc-slot 0 pic-slot 0 to locate incorrectly configured ports. See

“Configuration Changes Leading to Unexpected QFX5220 Behavior” on page 179.

QFX5220-32CD Network LEDs

The high-speed QSFP-DD network ports use a single bi-colored LED to indicate link status, activity on the link, or a fault condition. The 10-Gbps SFP+ ports have separate bi-colored LEDs; the left LED indicates link and activity and the right LED indicates fault conditions. See Figure 5 on page 27.

Figure 5: Link/Activity LEDs on QFX5220-32CD

Table 6 on page 28 describes the various states of the network port LED for the high-speed ports. Table 7 on page 28 describes how to interpret the link and activity LED and the status LEDs for the SFP+

ports.

Table 6: QSFP-DD Network Port LEDs on a QFX5220-32CD

DescriptionChannelizedStateColor

NoOffUnlit

NoOn steadilyGreen

Yes

NoFlashing

Yes

Off is the default mode. The LED can be unlit even when power is present and a transceiver is present in the port.

The port is administratively disabled.

•

The link is down.

•

A fault is detected on the link.

•

The port is administratively disabled.Yes

A 400-Gbps or 100-Gbps link is established, but there is no activity.

All channels or subports have link established but there is no activity.

A 400-Gbps or 100-Gbps link is established, and there is link activity.

All channels or subports have links established and there is link activity.

EitherAll LEDs Blipping (slow flashing)

YesFlashing

Table 7: SFP+ Network Port LEDs on QFX5220-32CD

flashing)

Indicates that the beacon feature is activated (service request).

One or more interface or connection errors has occurred.EitherBlinkingAmber

At least one channel or subport has a link, but not all channels or subports have links established.

DescriptionStateColorLED

Link down—The port does not have a connection.Link downOffLink/Activity

Link up—Theport has a connection, but there is noactivity.On steadilyGreen

Active link—Theport has a connection andthere is activity.Flashing

Beacon–The port has a service request.Blipping (slow

Table 7: SFP+ Network Port LEDs on QFX5220-32CD (continued)

DescriptionStateColorLED

The port is configured for 10 Gbps.On steadilyGreenStatus

Fault–The port has an interface error.BlinkingAmber

RELATED DOCUMENTATION

Channelizing Interfaces on QFX3500, QFX3600, QFX5100, QFX10002, QFX10008, QFX10016, and EX4600 Switches

QFX5220 Network Cable and Transceiver Planning | 92 Maintaining Transceivers and Fiber Optic Cables on a QFX5220 | 161

QFX5220-128C Port Panel

IN THIS SECTION

Overview | 29

Network Ports | 30

Port Configurations | 31

100-Gbps Port Configuration | 44

40-Gbps Port Configuration | 45

4 x 25 Gbps Port Channelization | 45

Delete 4 x 25 Gbps or 4 x 10 Gbps Port Channelization | 46

QFX5220-128C Network LEDs | 46

Overview

The port panel of the QFX5220-128C consists of 128 high-density 100-Gigabit Ethernet quad small form-factor pluggablesolution (QSFP28) ports and the management panel.The highly flexible ports support 100-Gbps or 40-Gbps port speeds. The QFX5220-128C supports channelizing the QSFP28 ports to 4

independent 25-Gbps speed interfaces. The switch has two dedicated 10-Gigabit Ethernet ports; 32 of

g051150

CON MGMT

128

129

RESET

1 32 3 34 5 36 7 38 9 40 11 42 13 44 15 46 17 48 19 50 21 52 23 54 25 56 27 58 29 60 31 62

65 96 67 98 69 100 71 102 73 104 75 106 77 108 79 110 81 112 83 114 85 116 87 118 89 120 91 122 93 124 95 126

QFX5220-128C

1011

the 128 ports can be channelized to 4 x 25-Gbps. See Figure 6 on page 30.

Figure 6: QFX5220-128C Port Panel

7—1— USB 2.0 port128 QSFP28 ports

8—2— Reset buttonRJ-45 time-of-day message port

9—3— ESD pointPTP-capable connections:SMB In, SMBOut, 10 MHz

In, 10 MHz Out

Chassis status alarms

10—4— RJ-45 MGMT connection for the re0:mgmt-0

management interface

11—5— Chassis serial number pull-out tab2 SFP+ ports

6—RJ-45 console port (CON) to support RS-232 serial

ports. (The LEDs indicate status and link.)

Network Ports

The QFX5220-128C QSFP28 network ports (0 to 127) support:

100-Gbps QSFP28 transceivers

•

100-Gbps QSFP28 direct attach copper (DAC) cables

•

100-Gbps QSFP28to 25-Gbps SFP28 direct attach copperbreak out (DACBO)cables (100-Gbps breaks

•

out to 4 independent 25-Gbps ports)

100-Gbps active optic cables (AOC)

•

40-Gbps QSFP+ transceivers

•

40-Gbps AOC

•

40 Gbps QSFP+ DAC cables

•

40 Gbps QSFP+ transceivers

•

40 Gbps QSFP+ to 10 Gbps SFP+ DACBO cables (40 Gbps breaks out to 10 Gbps ports)

•

NOTE: Ports qualified for channelization support 100-Gbps QSFP28 to 25-Gbps SFP28 direct

attach copper break out (DACBO) cables (100-Gbps breaks out to 4 independent 25-Gbps.

The 10-Gbps network ports 128 (et-0/0/128) and 129 (et-0/0/129) support SFP+ transceivers.

Port Configurations

The QFX5220-128C has 128 QSFP28 ports and 2 SFP+ ports. You can configure any of these ports in these combinations:

Any of the QSFP28 ports can be configured as 100 Gbps.

•

For Junos OS Evolved releases up to 20.2R1, you can configure any even-numbered QSFP28 port 40

•

Gbps speed.The system configures the next (odd) port as unused.For Junos OS Evolved releases 20.2R1 and later, you can configure all 128 QSFP28 ports for 40 Gbps speed.

Every fourthport (0, 4, 8...124) can be configured as channelized4 x 25 Gbps. Howeverbefore configuring

•

a port as channelized, the next three ports must be configured as unused.

Any SFP+ port can be configured as 10 Gbps or 1 Gbps.

•

Table 8 on page 31 shows how each QSFP28 port can be configured. You can mix and match speeds as

long as you adhereto the port rules. For example, on the same device youcan configure port 0 as 40 Gbps, ports 2 and 3 as 100 Gbps, and port port as 4 x 25 Gbps. In this example, port 1 and port 5-7 must be configured as unused unless you are running Junos OS Evolved Release 20.2R1 or later..

Table 8: QFX5220-128C Valid 100-Gbps Configurations

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓✓✓0

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓1

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓3

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓5

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓2

Configure as unusedConfigure as unused for initial

✓✓✓4

Configure as unusedConfigure as unused for initial

Configure as unused✓✓6

✓7

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓9

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓8

Configure as unusedConfigure as unused for initial

Configure as unused✓✓10

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓11

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓13

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓15

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓12

Configure as unusedConfigure as unused for initial

Configure as unused✓✓14

Configure as unusedConfigure as unused for initial

✓✓✓16

✓17

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓19

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓18

Configure as unusedConfigure as unused for initial

✓✓✓20

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓21

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓23

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓25

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓22

Configure as unusedConfigure as unused for initial

✓✓✓24

Configure as unusedConfigure as unused for initial

Configure as unused✓✓26

✓27

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓29

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓28

Configure as unusedConfigure as unused for initial

Configure as unused✓✓30

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓31

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓33

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓35

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓32

Configure as unusedConfigure as unused for initial

Configure as unused✓✓34

Configure as unusedConfigure as unused for initial

✓✓✓36

✓37

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓39

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓38

Configure as unusedConfigure as unused for initial

✓✓✓40

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓41

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓43

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓45

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓42

Configure as unusedConfigure as unused for initial

✓✓✓44

Configure as unusedConfigure as unused for initial

Configure as unused✓✓46

✓47

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓49

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓48

Configure as unusedConfigure as unused for initial

Configure as unused✓✓50

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓51

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓55

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓52

Configure as unusedConfigure as unused for initial

Configure as unused✓✓54

Configure as unusedConfigure as unused for initial

✓✓✓56

✓57

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓59

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓58

Configure as unusedConfigure as unused for initial

✓✓✓60

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓61

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓63

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓65

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓62

Configure as unusedConfigure as unused for initial

✓✓✓64

Configure as unusedConfigure as unused for initial

Configure as unused✓✓66

✓67

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓69

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓68

Configure as unusedConfigure as unused for initial

Configure as unused✓✓70

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓71

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓73

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓75

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓72

Configure as unusedConfigure as unused for initial

Configure as unused✓✓74

Configure as unusedConfigure as unused for initial

✓✓✓76

✓77

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓79

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓78

Configure as unusedConfigure as unused for initial

✓✓✓80

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓81

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓83

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓85

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓82

Configure as unusedConfigure as unused for initial

✓✓✓84

Configure as unusedConfigure as unused for initial

Configure as unused✓✓86

✓87

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓89

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓88

Configure as unusedConfigure as unused for initial

Configure as unused✓✓90

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓91

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓93

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓95

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓92

Configure as unusedConfigure as unused for initial

Configure as unused✓✓94

Configure as unusedConfigure as unused for initial

✓✓✓96

✓97

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓99

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓98

Configure as unusedConfigure as unused for initial

✓✓✓100

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓101

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓103

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓105

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓102

Configure as unusedConfigure as unused for initial

✓✓✓104

Configure as unusedConfigure as unused for initial

Configure as unused✓✓106

✓107

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓109

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓108

Configure as unusedConfigure as unused for initial

Configure as unused✓✓110

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓111

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓113

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓115

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

✓✓✓112

Configure as unusedConfigure as unused for initial

Configure as unused✓✓114

Configure as unusedConfigure as unused for initial

✓✓✓116

✓117

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓119

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓118

Configure as unusedConfigure as unused for initial

✓✓✓120

Table 8: QFX5220-128C Valid 100-Gbps Configurations (continued)

Ports Configurable as 100 GbpsPort

Ports Configurable as 40 Gbps

Ports Configurable as channelized 4 x 25 Gbps

✓121

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓123

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

✓125

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

Configure as unused✓✓122

Configure as unusedConfigure as unused for initial

✓✓✓124

Configure as unusedConfigure as unused for initial

Configure as unused✓✓126

✓127

Junos OS Evolved releases

✓ for Junos OS Evolved

20.2R1 and later

Configure as unusedConfigure as unused for initial

100-Gbps Port Configuration

All QSFP28 ports support either 40 Gbps or 100 Gbps. Use the set chassis fpc 0 pic 0 port port-num speed 100g command to configure ports 0 to 127 for 100-Gbps speed and commit the configuration.

40-Gbps Port Configuration

Before configuring a port for 40 Gbps, determine its associated used port (see Table 8 on page 31). In the following example,you would need to configure the neighboring port firstbefore configuring port et-0/0/0. If you are running a newer software release, you can skip to Step 2.

1. Block theport following the desired 40-Gbps port asunused and commit the configuration. For example, because you are configuringet-0/0/0 as 40 Gbps, you must firstconfigure the following port (et-0/0/1) as unused and commit that configuration.

# set chassis fpc 0 pic 0 port 1 unused # commit

2. Configure the speed on the desired port (et-0/0/0) as 40 Gbps and commit the configuration.

# set chassis fpc 0 pic 0 port 0 speed 40g # commit

4 x 25 Gbps Port Channelization

Before configuring a port for channelization, determine its associated used ports (see Table 8 on page 31). In the following example, you’ll configure port et-0/0/4 to operate as a 4 x 25 Gbps channelized port.

1. Block the three ports following the desired channelized port as unused, and commit the configuration. For example,because you are configuring et-0/0/4 as 4 x 25Gbps, you must first configurethe following ports (et-0/0/5, et-0/0/6, and et-0/0/7) as unused and commit the configuration.

# set chassis fpc 0 pic 0 port 5 unused # set chassis fpc 0 pic 0 port 6 unused # set chassis fpc 0 pic 0 port 7 unused # commit

Software removes these ports and updates the configuration.

2. Configure the speed on the desired port (et-0/0/4) as 25 Gbps, the number -of sub-ports as 4, and commit the configuration:

# set chassis fpc 0 pic 0 port 4 speed 25g number-of-sub-ports 4 # commit

Delete 4 x 25 Gbps or 4 x 10 Gbps Port Channelization

To remove the channelization configuration from a set of QFX5220-128C ports, delete the configuration from the channelized port and commit the configuration. For example:

# delete chassis fpc 0 pic 0 port port-number number-of-sub-ports 4

# delete chassis fpc 0 pic 0 port port-number speed port-speed

# commit

WARNING: An incorrectly configured port can cause unexpected port and switch

“Configuration Changes Leading to Unexpected QFX5220 Behavior” on page 179.

QFX5220-128C Network LEDs

The QSFP28 network ports use a single bi-colored LED for each port or channel to indicate link status, activity on the link, or a fault condition. When the port is channelized, there is an LED for each channel; when the port is not channelized, the left-most LED indicates the port link status.

The 10-Gbps SFP+ ports have separate bi-colored LEDs; the left LED indicates link and activity and the right LED indicates a fault condition. See Figure 7 on page 47.

Figure 7: Link/Activity and Status LEDs on QFX5220-128C

g051178

1 32 3 34

2—1— SFP+ :LEDs that indicate link/activity and statusQSFP28 LEDs that indicate link/activity,status, and

channelization

Table 9 on page 47 describe the various states of the LEDs for the QSFP28 ports and Table 10 on page 48

describe the LED states for the SFP+ ports.

Table 9: Network Port LEDs on QSFP28 Ports on a QFX5220-128C Switch

ChannelizedNon-ChannelizedStateColor

OffUnlit

The port is administratively disabled, there is no power, the link is down, no module is present, or the interface is disabled.

On steadilyGreen

activity.

There is an interface error.Blinking

A module is not present, all sub-channels are disabled, or there is no link.

All sub-channels are up.A link is established, but there is no link

The interface is up with activity.A link is established, and thereis link activity.Flashing

The beacon is enabled on the port.The beacon is enabled on the port.Blipping

At least one, but not all sub-channels are up.NAOn steadilyAmber

There is an error on one or more sub-channels.

NAFlashing

At least one, but not all sub-channels are up with activity.

Table 10: Network Port LEDs on SFP+ Ports on a QFX5220-128C Switch

DescriptionStateColorLED

OffUnlitLink/Activity

On steadilyGreen

BlinkingGreen

The port is administratively disabled, there is no power, the link is down, or there is a fault.

A link is established, but there is no link activity.On steadilyGreen

A link is established, and there is link activity.Blinking

The beacon is enabled on the port.BlinkingAmber

The link is down or there is a fault.OffUnlitStatus

A 10-Gigabit Ethernet transceiveris installed in the portand link is established.

A 1-Gigabit Ethernet transceiver is installed in the port and the link is established.

The beacon function is enabled on the port.Slow blippingAmber

QFX5220 Management Panel

IN THIS SECTION

QFX5220-128C Management Panel Overview | 49

QFX5220-32CD Management Panel Overview | 49

QFX5220-32CD Management Panel LEDs | 50

The management panel allows you to have a management channel into the switch that is separate from production traffic.

QFX5220-128C Management Panel Overview

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CON MGMT

128

129

RESET

1 32 3 34 5 36 7 38 9 40 11 42 13 44 15 46 17 48 19 50 21 52 23 54 25 56 27 58 29 60 31 62

65 96 67 98 69 100 71 102 73 104 75 106 77 108 79 110 81 112 83 114 85 116 87 118 89 120 91 122 93 124 95 126

QFX5220-128C

1011

The management panel of the QFX5220-128C is located to the right of the network ports.

Figure 8 on page 49 shows the connections and components of the management panel and the network

ports.

Figure 8: QFX5220-128C Port and Management Panels

RJ-45 grandmaster time-of-day connection

Out , PPS In, 10 MHz Out, 10 MHz In

Chassis alarms LEDs

6—RJ-45 console (CON) port

QFX5220-32CD Management Panel Overview

The management panel of the QFX5220-32CD is divided in two sections, with the port panel in between these sections. Figure 9 on page 50 shows the connections and components of the management panel and the network ports.

7—1— USB port for image updatesNetwork ports or port panel, 128 ports of QSFP28

8—2— Reset button (do not use unless under the direction

of JTAC)

9—3— ESD connection pointPTP capable connections: pulses per second (PPS)

10—4— RJ-45 (1000BASE-T) management Ethernet (MGMT

port for the re0:mgmt-0 management interface)

11—5— Slide-out tab for chassis serial number1-Gbps or 10-Gbps ports, 2 ports of SFP+

Figure 9: QFX5220-32CD Port and Management Panels

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TOD

ALM

SYS

10M

OUT

PPS

10 3 54 76 8 110 1312 1514 1716 1918 2120 2322 252 4 272 6 2928 313 0 333 22 9 1

RESET

MGMTCON

1 2

1011

RJ-45 grandmaster time-of-day connection

7—1— Reset button (do not use unless under the direction

of JTAC)

8—2— Slide out tab for chassis serial numberChassis alarms LEDs

9—3— Network ports, 10-Gigabit Ethernet portsNetwork ports or port panel, 32 ports of QSFP-DD

10—4— PTP and external clock connectionsRJ-45 (1000BASE-T) management Ethernet (MGMT

port for the re0:mgmt-0 management interface)

11—5— ESD connection pointRJ-45 console (CON) port

6—USB port for image updates

QFX5220-32CD Management Panel LEDs

IN THIS SECTION

QFX5220 Chassis Status LEDs | 51

RJ-45 Management Port LEDs | 54

You can find LEDs on these management panel ports:

Chassis status LEDs

•

RJ-45 Console and Management Port LEDs

•

The following sections explain how to interpret these LEDs.

QFX5220 Chassis Status LEDs

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29 60 31 62

QFX5220-128C

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Both models of the QFX5220 have a series of three LEDs that indicate system status. On the QFX5220-128C, you can find these LEDs to the right of the network ports (see Figure 10 on page 51). On theQFX5220-32CD, you can find these LEDs tothe left of the networkports (see Figure11 on page 51).

Figure 10: QFX5220-128C Chassis Status LEDs

1—ALM—Chassis alarm or fault

SYS—System status ID—Beacon

Figure 11: QFX5220-32CD Chassis Status LEDs

1—ALM—Chassis alarm or fault

SYS—System status ID—Beacon

Table 11 on page 53 describes the chassis status LEDs on a QFX5220, the colors and states, and the status

they indicate. You canview the colors of thethree LEDsremotely through the CLI byissuing the operational mode command show chassis lcd.

user@host> show chassis led

----------------------------------LEDs status: Alarm LED : Red Beacon LED: Off System LED: Green

Interface STATUS LED LINK/ACTIVITY LED

--------------------------------------------------------et-0/0/0 N/A Off et-0/0/1 N/A Off et-0/0/2 N/A Off et-0/0/3 N/A Off et-0/0/4 N/A Off et-0/0/5 N/A Off et-0/0/6 N/A Off et-0/0/7 N/A Off et-0/0/8 N/A Off et-0/0/9 N/A Off et-0/0/10 N/A Green et-0/0/11 N/A Off et-0/0/12 N/A Off et-0/0/13 N/A Off et-0/0/14 N/A Off et-0/0/15 N/A Off et-0/0/16 N/A Green et-0/0/17 N/A Off et-0/0/18 N/A Green et-0/0/19 N/A Off et-0/0/20 N/A Off et-0/0/21 N/A Off et-0/0/22 N/A Off et-0/0/23 N/A Off et-0/0/24 N/A Off et-0/0/25 N/A Off et-0/0/26 N/A Green et-0/0/27 N/A Green et-0/0/28 N/A Green et-0/0/29 N/A Off et-0/0/30 N/A Green et-0/0/31 N/A Off et-0/0/32 N/A Off et-0/0/33 N/A Off

Table 11: Chassis Status LEDs on a QFX5220-Devices

DescriptionStateColorName

OffUnlitALM–Alarm

On steadilyRed

On steadilyAmber

The switch is halted or there is no alarm.

A major hardware fault has occurred, such as a temperature alarm, power failure, or media failure. The device has halted. Poweroff the device bysetting the ACpower source outletto the OFF (O) position, or unplugging the AC power cords. Correct any voltage or site temperature issues, and allow the switch to cool down. Power on the QFX5220. Monitor the power supply and fan LEDs tohelp determine where the error is occurring.

A minor system level alarm has occurred, such as a software error or a missing rescue configuration. Power off thedevice by settingthe AC power source outlet to the OFF (O) position, or unplugging the AC power cords. Power on the QFX5220 and monitor the status LEDs to ensure that Junos OS Evolved boots properly.

The device is powered off or halted.OffUnlitSYS–System

On steadilyGreen

OffUnlitID–Identification

BlinkingBlue

Junos OS Evolved is loaded on the device.

The beacon feature is not enabled on the switch. Enable this feature by using the request chassis beacon fpc 0 on operational CLI command.

The beacon feature is enabled on the switch. Disable this feature by using the request chassis beacon fpc 0 off operational CLI command.

Table 11: Chassis Status LEDs on a QFX5220-Devices (continued)

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RESE T

MGM T

CON

1 2

DescriptionStateColorName

TIP: To find the status of the beacon, use the show chassis beacon operational CLI command.

user@host> show chassis beacon fpc 0 FPC 0 OFF

RJ-45 Management Port LEDs

The management port on a QFX5220-32CD has two LEDs that indicate link status and link activity. The management port is labeled MGMT for 10/100/1000BASE-T connections.

2—1— Status LEDLink and activity LED

Table 12 on page 54 describes the management port LEDs.

Table 12: Management Port LEDs on a QFX5220-32CD

DescriptionStateColorLED

OffUnlitLink/Activity

No link is established, there is a fault, or the link is down.

A link is established, but there is no link activity.On steadilyGreen

A link is established, and there is link activity.Blinking or flickering

Either the port speed is 10 MB or the link is down.OffUnlitStatus

The port speed is 1-Gbps.On steadilyGreen

The port speed is 100 MB.On steadilyAmber

RELATED DOCUMENTATION

show system alarms

request chassis beacon

QFX5220 Cooling System

IN THIS SECTION

QFX5220-128C Cooling System Description | 55

QFX5220-128C Fan Module LED | 57

QFX5220-32CD Cooling System Description | 57

QFX5220-32CD Fan Module LED | 61

Fan Module Status | 62

QFX5220-128C Cooling System Description

IN THIS SECTION

Fan Modules | 55

The cooling system in an QFX5220-128C consists of six 80-W fan modules and two counter-rotating fans housed in each of the four power supplies.

Fan Modules

The fanmodules in aQFX5220-128C are hot-removable and hot-insertableFRUs designed for port-to-FRU airflow. The fan module are numbered across from top left 0 to the bottom right corner 5. Each fan is 2 U high. See Figure 12 on page 56.

Figure 12: Fan module for QFX5220-128C

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Ports FRUs

The QFX5220-128C brings air into the vents in the port panel and exhausts warmed air through the field-replaceable units (FRU) panel.This typeof airflow is know as airflow out or port-to-FRU airflow. Airflow out fans are distinguished by AIR OUT marking on the orange (Juniper gold) handles. In data center deployments, position the switch in such a manner that the AIR OUT labels on the switch components are next to the hot aisle.

You remove and replace a fan module from the FRU end of the chassis. The switch continues to operate for a limited period of time (30 seconds) during the replacement of the fan module without thermal shutdown. Figure 13 on page 56 shows the airflow through the chassis.

Figure 13: Air Out Airflow Through the QFX5220-128C Chassis

NOTE: The fans provide a (5x2+1)+1 redundancy. However, foroptimal operation ofthe device,

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install all of the fans.

QFX5220-128C Fan Module LED

Each fan module has an associated LED to indicate status. On the QFX5220-128C, the fan LED is located to the right of each fan below a fan icon. See Figure 14 on page 57 for the location of these LEDs.

Figure 14: Fan Module LEDs on a QFX5220-128C

1—Fan module LEDs

The LED behavior is common for both QFX5220-32CD and QFX5220-128C. For information on how to interpret the LEDs, see Table 14 on page 62.

QFX5220-32CD Cooling System Description

IN THIS SECTION

Fan Modules | 58

Do Not Install Components with Different Airflow or Wattage in the Switch | 60

The coolingsystem in an QFX5220-32CD consists of six fan modulesand a single fan in each power supply.

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The switch can ordered in one of two airflow directions:

Airflow In–Air comes into the switch through the vents in the field-replaceable units (FRUs)

•

Airflow Out–Air comes into the switch through the vents in the port panel.

•

CAUTION: Airflow In and Airflow Out fans and power supplies cannot be mixed in

the same chassis.

Fan Modules

The fanmodules in QFX5220 devices are hot-insertableand hot-removable field-replaceableunits (FRUs). These fan modules are designed for one of the two available airflow directions (Airflow In or Airflow Out). The fan modules are also color-coded for the airflow direction as well. The fan modules are installed in the fan module slots on the FRU panel.

The QFX5220-32CD fan modules have six fan modules numbered 0 through 5 when counting from left to right.

Figure 15 on page 58 shows a fan module.

Figure 15: QFX5220-32CD Fan Module

You remove and replace a fan module from the FRU end of the chassis. The switch can work with only five fans. However, we recommend running with all six fans for redundancy and optimal operation of the switch. If a fan fails, or you want to run the switch without redundancy, leave the sixth fan in place to maintain proper airflow. When you replace a fan, the switch continues to operate for a limited period of time (3 minutes) without thermal alarms or shutdown.

The fan modules are available in two product variants that have different airflow directions—FRU-to-port airflow and port-to-FRU airflow Table 13 on page 59 lists the available fan module product variants and the direction of airflow in them:

Table 13: Fan Modules in QFX5220 Switches

Label on the Fan ModuleAirflow DiagramFan Module

AIR INFigure 16on page60QFX5220-32CD-FANAI

AIR OUTFigure 17 onpage 60QFX5220-32CD-FANAO

Color of Fan Module

Juniper azure blue

Juniper gold

Direction ofAirflow in the Fan Module

FRU-to-port, that is, air comes in from the end ofthe switch with the fans; air exhausts from the switch end with ports(also known as back-to-front airflow).

Port-to-FRU, that is, air comes in through vents on the end with ports; airexhausts out the end with the fans (also known as front-to-back airflow).

Power Supplies

You must install only power supplies that have AIR IN labels in switches in which the fan modules have AIR IN labels.

You must install only power supplies that have AIR OUT labels in switches in which the fan modules have

AIR OUT

labels.

In data center deployments, position the switch in such a manner that the AIR IN labels on switch components are next to the cold aisle, and AIR OUT labels on switch components are next to the hot aisle.

Figure 16: Air In Airflow Through QFX5220-32CD

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Ports

FRUs

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Ports FRUs

Figure 17: Air Out Airflow Through QFX5220-32CD

Do Not Install Components with Different Airflow or Wattage in the Switch

Do not mix airflow direction on fans or power supplies. You can use the color-coding on fan and power supply handles to ensure the airflow direction matches. The handles on Airflow In fans and power supplies are azure blue, compared to the Airflow Out fans and power supplies, which are Juniper gold.

Mixing components with different airflows in the same chassis hampers the performance of the cooling system of the switch and leads to overheating of the chassis.

CAUTION: The system raises an alarm if a fan module fails or if the ambient

temperature inside the chassis rises above the acceptable range. If the temperature inside the chassis rises above the threshold temperature, the system shuts down automatically. Thesystem takes 240 seconds toshut down after the red alarm threshold is reached.

Do not mix fan modules with different wattage. Only use the replacement fan modules that are designed for usewith your productnumber. See Table13 on page59 for thecorrect part numberfor your QFX5220 device.

CAUTION: Do not mix AC and DC power supplies in the same QFX5220 chassis.

However, if you need to converta QFX5220 device to have a different airflow, you can change the airflow pattern. To convert an AIR IN product variant to an AIR OUT product variant or an AIR OUT product variant to a AIR IN product variant, you must power off and replace all of the fans and power supplies at one time to use the new direction. The system raises an alarm when the system is converted, which is normal.

NOTE: If you change the switch to have a different airflow, be sure to update your JTAC install

base to reflect the new configuration to ensure service warranties and contracts remain˙.

QFX5220-32CD Fan Module LED

On the QFX5220-32CD switches, the fan module LEDs are located on the chassis next to the fan module slot. Figure 18 on page 62 shows the location of the fan module LEDs next to the fan module on a QFX5220-32CD switch.

Figure 18: Fan Module LEDs on a QFX5220-32CD

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1—Fan module LED

Table 14 on page 62 describes the function of the fan tray LED.

Table 14: Fan Tray LED Behavior in a QFX5220

DescriptionStateColorName

On steadilyGreenFan

BlinkingAmber

The fanmodule is operatingnormally. The system has verified that themodule is engaged, that the airflow is in the correct direction, and that the fan is operating correctly.

An error has been detected in the fan module. Replace the fan module as soon as possible. Either the fan has failed or it is seatedincorrectly. To maintain proper airflow through the chassis, leave the fan module installed in the chassis until you are ready to replace it.

Under normal operating conditions, the fan modules operate at a moderate speed. Temperature sensors in the chassis monitor the temperature within the chassis.

The systemraises an alarm if a fan module fails or ifthe ambient temperature inside the chassis rises above the acceptable range. If the temperature inside the chassis rises above the threshold temperature, the system shuts down automatically.

Fan Module Status

You can check the status of fan modules through the show chassis temperature-thresholds, show system alarm, or show chassis environment commands, or by looking at the LEDs next to each fan module. For

example:

user@device> show chassis environment

Class Item Status Measurement

Temp PSM 1 Ok 25 degrees C / 77 degrees F

PSM 3 Ok 25 degrees C / 77 degrees F FPC 0 Sensor MainTopBack Ok 32 degrees C / 89 degrees F

FPC 0 Sensor MainTopBackRight Ok 32 degrees C / 89 degrees F

FPC 0 Sensor MezzPhysLeftSide Ok 26 degrees C / 78 degrees F

FPC 0 Sensor MezzPhysRightSide Ok 26 degrees C / 78 degrees F FPC 0 Sensor NearTH3 Ok 30 degrees C / 86 degrees F

FPC 0 Sensor MainPhysLeftSide Ok 26 degrees C / 78 degrees F

FPC 0 Sensor MainPhysRightSide Ok 26 degrees C / 78 degrees F

FPC 0 Sensor TopLeftCpuBoard Ok 27 degrees C / 80 degrees F

FPC 0 Sensor TopBackRightCpuBoard Ok 27 degrees C / 80 degrees F

FPC 0 Sensor BottomMiddleCpuBoard Ok 31 degrees C / 87 degrees F

FPC 0 Sensor TH3 Max Reading Ok 44 degrees C / 111 degrees F

Routing Engine 0 CPU Temperature Ok 41 degrees C / 105 degrees F Fan Fan Tray 0 Fan 1 Ok 4395 RPM

Fan Tray 0 Fan 2 Ok 4688 RPM

Fan Tray 1 Fan 1 Ok 4688 RPM

Fan Tray 1 Fan 2 Ok 4688 RPM Fan Tray 2 Fan 1 Ok 4688 RPM

Fan Tray 2 Fan 2 Ok 4981 RPM

Fan Tray 3 Fan 1 Ok 4688 RPM

Fan Tray 3 Fan 2 Ok 4981 RPM

Fan Tray 4 Fan 1 Ok 4395 RPM Fan Tray 4 Fan 2 Ok 4981 RPM Fan Tray 5 Fan 1 Ok 4395 RPM Fan Tray 5 Fan 2 Ok 4981 RPM

The QFX5220 has a status LED (labeled ST) for each fan module. It indicates the status of all the fan modules.

RELATED DOCUMENTATION

Maintaining QFX5220 Cooling System | 151

QFX5220 Power System

IN THIS SECTION

QFX5220 AC Power Supply Modules Description | 66

QFX5220 AC Power Specifications | 68

AC Power Cord with Type C13 Coupler Specifications | 69

AC Power Cord with Type C15 Coupler Specifications | 71

QFX5220 AC Power Supply LEDs | 73

QFX5220 DC Power Supply Description | 74

QFX5220 DC Power Specifications | 76

QFX5220-128C DC Power Cable Specification | 77

QFX5220-128C DC Power Supply LED | 78

QFX5220-32CD-D DC Power Supply LED | 79

The power supplies in QFX5220 models are hot-removable and hot-insertable field-replaceable units (FRUs). You can installreplacement power supplies without poweringoff the device or disrupting switching function. The power supplies are installed at the factory and shipped with the chassis. All power supplies for QFX5220 are 1600 W; however, the power supplies for the QFX5220-32CD and the QFX5220-128C are not interchangeable.

CAUTION: Only use the power supply for your model number and airflow. Do not

mix power supplies with different airflow or different wattage. The system raises an alarm when a power supply having a different airflow or wattage is inserted into the chassis.

The power supplies for the QFX5220 are located on the FRU panel. See Figure 19 on page 66 and

Figure 20 on page 66.

Figure 19: QFX5220-128C FRU Panel

0 1 2

3 4 5

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115-240V ; 50-60Hz; 12.7-9 .4AACINPUT:

+12V 90A,+5V SB 3A

DCINPUT:

1200WMAXFOR 115~127V INPUT

+12V 133A,+5VSB 3A

1600WMAXFOR 200~2 40V INPUT

0 1

1 2 1

2—Fans

3—1— Chassis protective earthing terminalPower supplies

Figure 20: QFX5220-32CD FRU Panel

2—1— FansPower supplies

QFX5220 AC Power Supply Modules Description

The QFX5220-32CD ships with two power supplies; the QFX5220-128C ships with four power supplies. While each model can operate with the minimum number of power supplies (one for QFX5220-32CD, two for QFX5220-128C), maximum power supplies are required to have redundancy. See

Figure 21 on page 67 and Figure 22 on page 67 for examples of these power supply modules.

Figure 21: 1600-W AC Power Supply for QFX5220-32CD

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Figure 22: 1600-W AC Power Supply for QFX5220-128C

3—1— Ejection leverPower connector

4—2— HandlePower LED

An AC power supply for the QFX5220 is 1600 W. However, the power supplies for the QFX5220-32CD and the QFX5220-128C are not interchangeable. Be sure to use the correct power supply for your chassis product variant (see Table 15 on page 67).

The power supply provides FRU-to-port or port-to-FRU airflow depending on the model and variant you purchase. The power supplies have color-coded indicators to indicate the airflow direction.

Table 15: DC Power Supply Summary

Color IndicatorAirflow DirectionProduct NumberModel

Juniper azure blue handleAirflow In (FRU-to port)JPSU-1600W-1UACAFIQFX5220-32CD

Juniper gold handleAirflow Out (port-to-FRU)JPSU-1600W-1UACAFO

Table 15: DC Power Supply Summary (continued)

Color IndicatorAirflow DirectionProduct NumberModel

Juniper gold handleAirflow Out (port-to-FRU)JPSU-1600W-AC-AFOQFX5220-128C

CAUTION: Verify that the airflow direction on the power supply handle matches the

direction of airflow in the chassis. Ensure that each power supply you install in the chassis has the same airflow direction. If you install power supplies with two different airflow directions, Junos OS raises an alarm. If you need to convert the airflow pattern on a chassis, you must change out all the fans and power supplies at one time to use the new direction.

To avoid electrical injury,carefully follow instructions in “Connecting the QFX5220to Power” on page 136.

QFX5220 AC Power Specifications

Table 16 on page 68 describes the AC power specifications for a QFX5220.

Table 16: AC Power Specifications for a QFX5220

Item

AC input voltage

Specification

QFX5220-32CD

QFX5220-128C

50–60 HzAC input line frequency

QFX5220-32CDAC input current rating

QFX5220-128C

Operating range: 115 / 240 VAC

12.7 A at 115-127 VAC

9.4 A at 200-240 VAC

19.36 A at 115-127 VAC

10.95 A at 200-240 VAC

Table 16: AC Power Specifications for a QFX5220 (continued)

Item

Specification

QFX5220-32CDTypical power consumption

QFX5220-128C

115-127 V: 730-W

220-240 V: 775-W

115-127 V: 1433-W

220-240 V: 1394-W

115-127 V: 973-WQFX5220-32CDMaximum power consumption

115-127 V: 2023-W

220-240 V: 1990-W

QFX5220-128C AC models use power cords with type C13 couplers, see “AC Power Cord with Type C13

Coupler Specifications” on page 69. The QFX5220-32CD AC model uses power cords with type C15

couplers, see “AC Power Cord with Type C15 Coupler Specifications” on page 71.

AC Power Cord with Type C13 Coupler Specifications

Detachable AC power cords are shipped with the chassis, if you include them as part of your order. The coupler is type C13 as described by International Electrotechnical Commission (IEC) standard 60320. The plug end of the power cordfits into the power source outlet that is standard for your geographical location.

NOTE: In North America, AC power cords must not exceed 14.75 feet (approximately 4.5 meters)

in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical Code (CEC) Section 4-010(3). The cords that can be ordered for the QFX Series switches are in compliance.

Table 17 on page 70 lists AC power cord specifications provided for each country or region.

Table 17: AC Power Cord Specifications

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Australia

China

Europe (except Italy, Switzerland, and United Kingdom)

Italy

Japan

North America

Electrical SpecificationsCountry/Region

250 VAC, 10 A, 50 Hz

50 Hz

50 Hz or 60 Hz

125 VAC, 13 A, 60 Hz

Plug Standards

3109-1996

NEMA 5-15P

Shipped Juniper Model Number

Spare Juniper Model Number

CBL-EX-PWR-C13-AUCG_CBL-C13-06-AUAS/NZ

CBL-EX-PWR-C13-CHCG_CBL-C13-06-CHGB1002-1996250 VAC, 10 A,

CBL-EX-PWR-C13-EUCG_CBL-C13-06-EUCEE (7) VII250 VAC, 10 A,

CBL-EX-PWR-C13-ITCG_CBL-C13-06-ITCEI 23-16/VII250 VAC, 10 A,

CBL-EX-PWR-C13-JPCG_CBL-C13-06-JPJIS C8303125 VAC, 12 A,

CBL-EX-PWR-C13-USCG_CBL-C13-06-USEN 60320 C13

Graphic

India

South Korea

Switzerland

United Kingdom

250 VAC, 10 A, 50 Hz

250 VAC, 10 A, 60 Hz

250 VAC, 10 A, 50 Hz

50 Hz

CBL-EX-PWR-C13-INCG_CBL-C13-06-INIS 1293 Type

IND/3

CBL-EX-PWR-C13-KRCG_CBL-C13-06-KRKS C 8305

60227-5 IEC 60227-7 IEC

CBL-EX-PWR-C13-SZCG_CBL-C13-06-SZSEV 1011 SEV 1991; EN 60320 C13

CBL-EX-PWR-C13-UKCG_CBL-C13-06-UKBS 1363/A250 VAC, 10 A,

AC Power Cord with Type C15 Coupler Specifications

Detachable AC power cords are shipped with the chassis, if you include them as part of your order. Some country-specific plugs are only available as spare orders. The coupler is type C15 as described by International Electrotechnical Commission (IEC) standard 60320. The plug end of the power cord fits into the power source outlet that is standard for your geographical location.

NOTE: In North America, AC power cords must not exceed 14.75 feet (approximately 4.5 meters)

Table 18 on page 72 lists AC power cord specifications provided for each country or region.

Table 18: AC Power Cord Specifications

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Argentina

Australia

Brazil

China

Europe (except Italy, Switzerland, and United Kingdom)

Electrical SpecificationsCountry/Region

250 VAC, 10 A, 50 Hz

RA/3

3112-2000 Type SAA/3

BR/3

Type PRC/3

VIIG

Juniper Model NumberPlug Standards

Spare Juniper Model Number

CBL-PWR-C15M-HITEMP-AR–IRAM 2073 Type

CBL-PWR-C15M-HITEMP-AUCG_CBL-C15-02-AUAS/NZS

CBL-PWR-C15M-HITEMP-BR–NBR 14136 Type

CBL-PWR-C15M-HITEMP-CHCG_CBL-C15-02-CHGB2099/GB 1002

CBL-PWR-C15M-HITEMP-EUCG_CBL-C15-02-EUCEE (7) VII Type

Graphic

Italy

Japan

North America

South Africa and India

South Korea and some parts of Europe

Switzerland

United Kingdom

250 VAC, 10 A, 50 Hz

125 VAC, 15 A, 50 Hz

250 VAC, 10 A, 50 Hz

CBL-PWR-C15M-HITEMP-ITCG_CBL-C15-02-IT-CHCEI 23-16

Type I/3G

CBL-PWR-C15M-HITEMP-JPCG_CBL-C15-02-JPJIS 8303

Type 498GJ

CBL-PWR-C15M-HITEMP-USCG_CBL-C15-02-USNEMA 5-15

Type 498G

CBL-PWR-C15M-HITEMP-SA–SABS 164/1:1992

Type ZA/3

CBL-PWR-C15M-HITEMP-KR–CEE(7) VII

Type VIIG

CBL-PWR-C15M-HITEMP-SZCG_CBL-C15-02-SZSEV 1011/6534-2

Type 12G

CBL-PWR-C15M-HITEMP-UKCG_CBL-C15-02-UKBS 1363/A

Type BS89/13

QFX5220 AC Power Supply LEDs

The QFX5220-128C uses a single bi-colored LED to indicate power status. Figure 23 on page 73 shows the location of the LED on the JPSU-1600W-AC-AFO and Table 23 on page 78 explains the LED behavior on QFX5220-128C power supplies.

Figure 23: Power Supply Module LEDs for QFX5220-128C

1—Status LED

The QFX5220-32CD uses three LEDs to indicate power status. Figure 24 on page 73 shows the location of the LEDs on the JPSU-1600W-1UAC power supply.

Figure 24: Power Supply Module LEDs for QFX5220-32CD

3—1— Fault conditionAC input okay

2—DC output okay

Table 19 on page 74 describes the LED behavior on the QFX5220-32CD AC power supplies.

Table 19: AC Power Supply LEDs on a QFX5220-32CD

DescriptionStateColorLED

OffUnlitAC input

okay

OffUnlitDC output

okay

On steadilyAmberFault

The power supply is disconnected from power, or power is not coming into the power supply.

Power is coming into the power supply.On steadilyGreen

The powersupply is disconnectedfrom power, orthe power supply is not sending out power correctly.

The power supply is sending out power correctly.On steadilyGreen

An errorhas been detectedin the power supply. Replace the power supply assoon as possible. Tomaintain proper airflow throughthe chassis, leave the power supply installed in the chassis until you are ready to replace it.

The power supply is an invalid model.Blinking

NOTE: If the input and output LEDs are unlit, either the AC power cord is not installed properly

or the power supply fuse has failed. If the input LED is lit and the output LED is unlit, the AC power supply is installed properly, but the power supply has an internal failure.

QFX5220 DC Power Supply Description

The DC power supplies in the QFX5220 (see Figure 25 on page 75 and Figure 26 on page 75) are hot-removable and hot-insertable field-replaceableunits (FRUs) that install withoutpowering off the device or disrupting the switching function. The factory installed power supplies in both models are 1600-W, but are not interchangeable. The QFX5220-128C switch has four power supplies and the QFX5220-32CD is shipped with two power supplies. Each power supply provides 2400 W of power to the chassis.

Both power supplies have double the amount of power supplies needed to power all of the components in the switch, which is known as 2n redundancy. When the switch has all of the power supplies installed, the switch has fullpower redundancy. If a powersupply fails or is removed, a second power supply balances the electrical load without interruption. For more on redundancy features, see “QFX5220 Component

Redundancy” on page 22. Each power supply provides 12-VDC output with a standby voltage of 12 VDC.

Figure 25: DC Power Supply in QFX5220-128C

2—Ejector lever

Figure 26: DC Power Supply in QFX5220-32CD

3—1— HandlePower LED

CAUTION: Verify that the airflow direction on the power supply handle matches the

direction of airflow in the chassis. Ensure that each power supply you install in the chassis has the same airflow direction. If you install power supplies with two different airflow directions, Junos Evolved raises an alarm. If you need to convert the airflow pattern on a chassis, you must change out all the fans and power supplies at one time to use the new direction.

Table 20 on page 75 shows the characteristics of the power supply and the direction of the airflow.

Table 20: DC Power Supply Summary

Direction of AirflowProduct NumberWattageModel

JPSU-1600W-DC-AFO1600-WQFX5220-128C

(port-to-FRU)

Color of Power Supply Handle

Juniper goldAirflow Out

Table 20: DC Power Supply Summary (continued)

Direction of AirflowProduct NumberWattageModel

JPSU-1600W-1UDCAFI1600-WQFX5220-32CD

JPSU-1600W-1UDCAFO1600-W

Airflow In (FRU-to port)

(port-to-FRU)

Color of Power Supply Handle

Juniper azure blue handle

Juniper goldhandleAirflow Out

We recommend that the 48 VDC facility DC source be equipped with a circuit breaker rated at 40 A (–48 VDC) minimum, or as required by local code.

To avoid electrical injury, carefully follow instructions in “Maintaining the QFX5220 Power System” on

page 155 .

QFX5220 DC Power Specifications

Table 21 on page 76 describes the DC power specifications for the DC version of a QFX5220 switch.

Table 21: DC Power Specifications for a QFX5220

SpecificationsModelItem

DC input voltage

DC input current rating

QFX5220-32CD

consumption

Rated operating voltage: VDC -48

•

VDC through -60 VDC

Operating voltage range: –40 VDC

•

through –72 VDC

40 A maximumQFX5220-128C

1394-WQFX5220-128CTypical powerconsumption

448-WQFX5220-32CD

1990-WQFX5220-128CMaximum power

1002-WQFX5220-32CD

We recommend that the 48 VDC facility DC source be equipped with a circuit breaker rated at 40 A (–48 VDC) minimum, or as required by local code.

QFX5220-128C DC Power Cable Specification

QFX5220-128C DCpower supplies requirea D-Sub 3W3- type connector.The three pinson the connector provide –48 VDC input (–), return (+), and ground connections to the power supply.

DC power cables, each 4 m (approximately 13.1 ft) long, are supplied with the QFX5220-128C. The provided cables include the three-pin connector on one end and three insulated wires at the opposite end, for connection to the site’s DC power distribution system.

Table 22 on page 77 lists the specifications for the QFX5220-128C DC power cables.

Table 22: QFX5220-128C DC Power Cable Specifications

Juniper Model Number

Wire SizeInsulation ColorWire Function

8 AWG (8.4 mm²), 90° CBlue–48 VDC input (–)CBL-JNP-PWR-DSUB

Straight cable

8 AWG (8.4 mm²), 90° CBlackReturn (+)

8 AWG (8.4 mm²), 90° CGreen and yellowGround

WARNING: For field-wiring connections, use copper conductors only.

WARNING: Power cables must not block access to QFX5220 components or drape

where people could trip on them.

CAUTION: You must ensure that power connections maintain the proper polarity.

The power source cables might be labeled (+) and (–) to indicate their polarity. There is nostandard color coding for DC powercables. The colorcoding used by the external DC power source at your site might be different from the color coding for the leads on the DC power cable provided with the chassis.

QFX5220-128C DC Power Supply LED

Figure 27 on page 78 shows the location of the status LED on the QFX5220-128C DC power supply.

Figure 27: DC Power Supply LED

1—Status LED

Table 23 on page 78 describes the status LED behavior on QFX5220-128C power supplies.

Table 23: DC Power Supply LEDs on a QFX5220-128C

DescriptionStateLED Color

OffUnlit

On steadilyAmber

The power supply is disconnected from power, or power is not coming into the power supply.

The power supply is operating correctly.On steadilyGreen

A power supply fault or error has occurred in the power supply. Replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supply installed in the chassis until you are ready to replace it.

You can get additional information about the status of the power modules using the show chassis environment pem. For example:

user@device> show chassis environment pem

PSM1 status:

State Online

Temperature 25 degrees C / 77 degrees F

g051075

Fans OK

DC Output Failed

PSM3 status:

State Online

Temperature 25 degrees C / 77 degrees F

Fans OK

DC Output Failed

QFX5220-32CD-D DC Power Supply LED

Figure 28 on page 79 shows the location of the power supply status LEDs.

Figure 28: QFX5220-32CD-D Status LEDs

3—1— FaultInput OK

2—Output OK

Table 24 on page 80 describes the status LED behavior on QFX5220-32CD power supplies.

Table 24: DC Power Supply LEDs on a QFX5220-32CD

DescriptionLED ColorStatus

OffInput OK

Amber, on steadilyFault

RELATED DOCUMENTATION

Maintaining the QFX5220 Power System | 155

The power supply is disconnected from power, or power is not coming into the power supply.

Input voltage is present and is within range.Green, on steadily

The power supply is running at the power limit or is over current.OffOutput OK

The power supply is operating correctly.Green, on steadily

A power supply fault or error has occurred in thepower supply. Replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supplyinstalled in the chassis until you are ready to replace it.

The power supply is not valid. Check the model number.Amber, blinking

CHAPTER

Site Planning, Preparation, and

Specifications

QFX5220 Site Preparation Checklist | 82

QFX5220 Site Guidelines and Requirements | 83

QFX5220 Network Cable and Transceiver Planning | 92

QFX5220 Management Cable Specifications and Pinouts | 99

QFX5220 Site Preparation Checklist

The checklist in Table 25 on page 82 summarizes the tasks you need to perform when preparing a site for a QFX5220 installation.

Table 25: Site Preparation Checklist

DatePerformed ByFor More InformationItem or Task

Environment

Verify that environmental factors such as temperature and humidity do not exceed switch tolerances.

Power

power sources and switch installation site.

Calculate the power consumption and requirements.

Rack or Cabinet

Verify that your rack or cabinet meets the minimum requirementsfor the installation of the switch.

“QFX5220 Environmental Requirements andSpecifications” on page 84

—Measure the distance between external

“QFX5220 Power System” on page 64

QFX5220 Rack Requirements

•

on page 89

QFX5220 Cabinet

•

Requirements on page 90

Determining QFX5220Optical

•

Interface Support on page 92

Plan rack or cabinet location, including required space clearances.

building structure.

Cables

“QFX5220 Clearance Requirements for Airflow and Hardware Maintenance” on page 87

—Secure the rack or cabinet to the floor and

Table 25: Site Preparation Checklist (continued)

DatePerformed ByFor More InformationItem or Task

Acquire cables and connectors:

Determine the number of cables needed

•

based on your planned configuration.

Review themaximum distance allowed for

•

each cable. Choose the length of cable based on the distance between the hardware components being connected.

“Determining QFX5220 Optical Interface Support” on page 92

—Plan the cable routing and management.

RELATED DOCUMENTATION

General Safety Guidelines and Warnings | 199 QFX5220 Installation Overview | 111

QFX5220 Site Guidelines and Requirements

IN THIS SECTION

QFX5220 Environmental Requirements and Specifications | 84

General Site Guidelines | 85

QFX5220 Grounding Cable and Lug Specifications | 86

QFX5220 Clearance Requirements for Airflow and Hardware Maintenance | 87

QFX5220 Chassis Physical Specifications | 88

Site Electrical Wiring Guidelines | 88

QFX5220 Rack Requirements | 89

QFX5220 Cabinet Requirements | 90

QFX5220 Environmental Requirements and Specifications

The switch must be installed in a rack or cabinet. It must be housed in a dry, clean, well-ventilated, and temperature-controlled environment.

Follow these environmental guidelines:

The site must be as dust-free as possible, because dust can clog air intake vents and filters, reducing the

•

efficiency of the switch cooling system.

Maintain ambient airflow for normal switch operation. If the airflow is blocked or restricted, or if the

•

intake air is too warm, the switch might overheat, leading to the switch temperature monitor shutting down the device to protect the hardware components.

Table 26 on page 84 provides the required environmental conditions for normal switch operation.

Table 26: QFX5220-32CD Switch Environmental Tolerances

ToleranceDescription

Altitude

Relative humidity, operating

QFX5220-128C-AFO–At 32° F through 104° F (0° C through 40° C)

•

there is no performance degradation to 6000 feet (1828.8 meters

QFX5220-32CD-AFO–At 32° F through 104° F (0° C through 40° C)

•

there is no performance degradation to 6000 feet (1828.8 meters)

QFX5220-32CD-AFI-At 32° F through 77° F (0° C through 25° C) there

•

is no performance degradation to 6000 feet (1828.8 meters)

Normal operation ensured in relative humidity range of 5% through 90%, noncondensing

Table 26: QFX5220-32CD Switch Environmental Tolerances (continued)

ToleranceDescription

Temperature

Seismic

QFX5220-128C-AFO

Normal operation ensured in temperature range of 32° F through 104° F

•

(0° C through 40° C)

Nonoperating storagetemperature in shipping container: –40° F through

•

158° F (–40° C through 70° C)

QFX5220-32CD-AFO

Normal operation ensured in temperature range of 32° F through 104° F

•

(0° C through 40° C)

Nonoperating storagetemperature in shipping container: –40° F through

•

158° F (–40° C through 70° C)

QFX5220-32CD-AFI

Normal operation ensured in temperature range of 32° F through 77° F

•

(0° C through 25° C)

Nonoperating storagetemperature in shipping container: –40° F through

•

158° F (–40° C through 70° C)

Designed to comply with Zone 4 earthquake requirements per NEBS GR-63-CORE, Issue 3.

General Site Guidelines

Efficient deviceoperation requires proper site planningand maintenance andproper layoutof the equipment, rack or cabinet, and wiring closet.

To plan and create an acceptable operating environment for your device and prevent environmentally caused equipment failures:

Keep the area around the chassis free from dust and conductive material, such as metal flakes.

•

Follow prescribed airflow guidelines to ensure that the cooling system functions properly and that

•

exhaust from other equipment does not blow into the intake vents of the device.

Follow the prescribed electrostatic discharge (ESD) prevention procedures to prevent damaging the

•

equipment. Static discharge can cause components to fail completely or intermittently over time.

Install the device in a secure area, so that only authorized personnel can access the device.

•

QFX5220 Grounding Cable and Lug Specifications

For installations that require aseparate grounding conductor to the chassis, the switch mustbe adequately grounded before power is connected to ensure proper operation and to meet safety and electromagnetic interference (EMI) requirements. To ground a QFX5220, connect a grounding cable to earth ground and then attach it to the chassis grounding points.

NOTE: A ground connection to the protectiveearthing terminal is not requiredfor an AC-powered

switch. The AC power cords provide adequate grounding when you connect the power supply in the switch to a grounded AC power outlet by using the AC power cord appropriate for your geographical location.

WARNING: The switch is pluggable type A equipment installed in a restricted-access

location. It has a separate protective earthing terminal provided on the chassis in addition to the grounding pin of the power supply cord. This separate protective earthing terminal must be permanently connected to earth ground for installations that require a separate grounding conductor to the chassis.

WARNING: To comply with GR-1089 requirements, all intrabuilding copper cabling

used for SFP+ and QSFP+ ports must be shielded and grounded at both ends.

CAUTION: Before switch installation begins,a licensed electrician must attach a cable

lug to the grounding cables that you supply. See “Ground the QFX5220-32CD and

Connect Power” on page 132 and “Ground the QFX5220-128C” on page 129. A cable

with an incorrectly attached lug can damage the switch.

Before connecting the switch to earth ground, review the following information:

The groundinglug required for the protective earthing terminal on aQFX5220 is a Panduit LCD10-10A-L

•

or equivalent(not provided). Thegrounding lug should accommodates 14–10 AWG (2–5.3 mm²) stranded wire.

The grounding cable that you provide for a QFX5220 must be 14 AWG (2 mm²), minimum 60° C wire,

•

or as permitted by the local code.

Ensure you have two SAE 10-32 x 1/4 in. washers and screws to attach the cable and bracket (not

•

provided).

QFX5220 Clearance Requirements for Airflow and Hardware Maintenance

g051087

18.99 in.

(48.23 cm)

Clearance required

for maintenance

22.79 in. (57.88 cm)

FRUsPorts

17.26 in.

(43.84 cm)

Clearance required

for maintenance

21.1 in. (53.59 cm)

30 in. (76.2 cm) 24 in. (61.0 cm)

g051193

FRUs

19.0 in.

(48.23 cm)

Ports

17.32 in.

(44.00 cm)

29.00 in. (73.66 cm)

Clearance required

for maintenance

29.25 in. (74.30 cm)

Clearance required

for maintenance

30 in. (76.2 cm) 24 in. (61.0 cm)

When planning the site for installing a QFX5220, you must allow sufficient clearance around the installed chassis (see Figure 29 on page 87 and Figure 30 on page 87).

Figure 29: Clearance Requirements for Airflow and Hardware Maintenance for a QFX5220-32CD

Figure 30: Clearance Requirements for Airflow and Hardware Maintenance for a QFX5220-128C

For the cooling system to function properly, the airflow around the chassis must be unrestricted. See

•

“QFX5220 Cooling System” on page 55 for more information about the airflow through the chassis.

If you are mounting a QFX5220 in a rack or cabinet with other equipment, ensure that the exhaust from

•

other equipment does not blow into the intake vents of the chassis.

Leave at least 24 in. (61 cm) both in front of and behind the QFX5220. For service personnel to remove

•

and install hardware components, you must leave adequate space at the front and back of the switch. NEBS GR-63 recommends that you allow at least 30 in. (76.2 cm) in front of the rack or cabinet and 24 in. (61 cm) behind the rack or cabinet.

QFX5220 Chassis Physical Specifications

The QFX5220 is a rigid sheet-metal structure that houses the hardware components (see

Table 27 on page 88).

Table 27: Physical Specifications for the QFX5220

WeightDepthWidthHeightProduct Model

24.5 lb (11.11 kg) with power supplies and fans installed

98 lb (44.45 kg) with power supplies and fans installed

76 lb (34.47 kg) chassis only

QFX5220-128C

1.72 in. (4.3 cm)QFX5220-32CD

cm)

17.26 in. (43.8 cm)

17.32 in (44 cm)6.88 in. (17.48

21.1 in. (53.59 cm)

29.25 in. (74.3 cm)

Site Electrical Wiring Guidelines

Table 28 on page 89 describes the factors you must consider while planning the electrical wiring at your

site.

WARNING: You must provide a properlygrounded and shieldedenvironment and use

electrical surge-suppression devices.

Avertissement Vous devez établir un environnement protégé et convenablement mis à la terre et utiliser des dispositifs de parasurtension.

Table 28: Site Electrical Wiring Guidelines

Site Wiring Factor

Guidelines

Signaling limitations

Radio frequency interference

Electromagnetic compatibility

If yoursite experiences any ofthe following problems, consultexperts in electrical surgesuppression and shielding:

Improperly installed wires cause radio frequency interference (RFI).

•

Damage fromlightning strikes occurswhen wires exceedrecommended distances orpass between

•

buildings.

Electromagnetic pulses (EMPs) caused by lightning damage unshielded conductors and electronic

•

devices.

To reduce or eliminate RFI from your site wiring, do the following:

Use a twisted-pair cable with a good distribution of grounding conductors.

•

If you must exceed the recommended distances, use a high-quality twisted-pair cable with one

•

ground conductor for each data signal when applicable.

If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly from lightning or radio transmitters, seek expert advice.

Some of the problems caused by strong sources of electromagnetic interference (EMI) are:

Destruction of the signal drivers and receivers in the device

•

Electrical hazards as a result of power surges conducted over the lines into the equipment

•

QFX5220 Rack Requirements

QFX5220 switches are designed to be installed on four-post racks.

Rack requirements consist of:

Rack type

•

Mounting bracket hole spacing

•

Rack size and strength

•

Table 29 on page 90 provides the rack requirements and specifications for the QFX5220.

Table 29: Rack Requirements for the QFX5220

GuidelinesRack Requirement

Rack type

Mounting bracket hole spacing

Rack size and strength

Use a four-post rack that provides bracket holes or hole patterns spaced at 1-U (1.75 in. or

4.45 cm)increments and that meets the size and strength requirements to support the weight.

A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industry Association.

The holes in the mounting brackets are spaced at 1-U (1.75 in. or 4.45 cm) increments, so that the switch can be mounted in any rack that provides holes spaced at that distance.

Ensure that the rack complies with the standards for a 19-in. or 23-in. rack as defined in

•

Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industry Association.

A 600-mm rack as defined in the four-part Equipment Engineering (EE); European

•

telecommunications standard for equipment practice (document numbers ETS 300 119-1 through 119-4) published by the European Telecommunications Standards Institute.

The horizontal spacing between the rails in a rack that complieswith this standard is usually wider than the device's mounting brackets, which measure 19 in. (48.26 cm) from outer edge to outer edge. Use approved wing devices to narrow the opening between the rails as required.

Ensure that the rack rails are spaced widely enough to accommodate the switch chassis’

•

external dimensions. The outer edges of the front-mounting brackets extend the width to 19 in. (48.26 cm).

For four-post installations, the front and rear rack rails must be spaced between 23.6 in. (60

•

cm) and 36 in. (91.4 cm) front to back.

The rack must be strong enough to support the weight of the switch.

•

Ensure that the spacing of rails and adjacent racks allows for proper clearance around the

•

switch and rack.

Rack connection to building structure

Secure the rack to the building structure.

•

If earthquakes are a possibility in your geographical area, secure the rack to the floor.

•

Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum stability.

•

QFX5220 Cabinet Requirements

You can mount the QFX5220 in an enclosure or cabinet that contains a four-post 19-in. open rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Industry Association.

Cabinet requirements consist of:

Cabinet size and clearance

•

Cabinet airflow requirements

•

Table 30 on page 91 provides the cabinet requirements and specifications for the QFX5220.

Table 30: Cabinet Requirements for the QFX5220

GuidelinesCabinet Requirement

Cabinet size and clearance

Cabinet airflow requirements

The minimum cabinet size for accommodating a QFX5220 device is 36 in. (91.4 cm) deep. Large cabinets improve airflow and reduce the chance of overheating.

When you mount the switch in a cabinet, ensure thatventilation through the cabinet is sufficient to prevent overheating.

Ensure that the cool air supply youprovide through thecabinet adequately

•

dissipates the thermal output of the switch (or switches).

Ensure that the cabinet allows the chassishot exhaust air to exit the cabinet

•

without recirculating into the switch. An open cabinet (without a top or doors) that employs hot air exhaust extractionfrom the top allows the best airflow through the chassis. If the cabinet contains a top or doors, perforations in these elements assist with removing the hot air exhaust.

The QFX5220 fans exhaust hot air either through the vents on the port

•

panel or through the fans and power supplies. Install the switch in the cabinet in a way that maximizes the open space on the FRU side of the chassis. This maximizes the clearance for critical airflow.

Route and dress all cables to minimize the blockage of airflow to and from

•

the chassis.

Ensure thatthe spacing ofrails and adjacent cabinetsallows for theproper

•

clearance around the switch and cabinet.

RELATED DOCUMENTATION

QFX5220 Installation Overview | 111 Unpacking and Mounting the QFX5220 | 112

QFX5220 Network Cable and Transceiver Planning

IN THIS SECTION

Determining QFX5220 Optical Interface Support | 92

Cable Specifications for QSFP+ and QSFP28 Transceivers | 93

Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion | 95

Calculating Power Budget and Power Margin for Fiber-Optic Cables | 96

Determining QFX5220 Optical Interface Support

You can find information about the optical transceivers supported on your Juniper device by using the Hardware Compatibility Tool. In addition to transceiver and connection type, the optical and cable characteristics–where applicable–are documented for each transceiver. The Hardware Compatibility Tool enables you to search by product, displaying all the transceivers supported on that device, or category, by interface speed or type. The list of supported transceivers for the QFX5220 is located at

https://apps.juniper.net/hct/product/#prd=QFX5220.

CAUTION: If you face a problem running a Juniper Networks device that uses a

third-party optic or cable, the Juniper Networks Technical Assistance Center (JTAC) can helpyou diagnose thesource of the problem. YourJTAC engineer mightrecommend that you check thethird-party optic or cable and potentially replaceit with an equivalent Juniper Networks optic or cable that is qualified for the device.

NOTE: For interoperability with other QFX Series switches, ensure autonegotiation on the

QFX5220 is disabled.

Cable Specifications for QSFP+ and QSFP28 Transceivers

The 40-Gigabit Ethernet QSFP+ and 100-Gigabit Ethernet QSFP28 transceivers that are used in QFX Series switches use 12-ribbon multimode fiber crossover cables with socket MPO/UPC connectors. The fiber can be either OM3 or OM4. These cables are not sold by Juniper Networks.

CAUTION: To maintain agency approvals, use only a properly constructed, shielded

cable.

TIP: Ensure that you order cables with the correct polarity. Vendors refer to these crossover

cables as key up to key up, latch up to latch up, Type B, or Method B. If you are using patch panels between two QSFP+ or QSFP28 transceivers, ensure that the proper polarity is maintained through the cable plant.

Table 31 on page 93 describes the signals on each fiber. Table 32 on page 94 shows the pin-to-pin

connections for proper polarity.

Table 31: QSFP+ and QSFP28 Optical Module Receptacle Pinouts

SignalFiber

Tx0 (Transmit)1

Tx1 (Transmit)2

Tx2 (Transmit)3

Tx3 (Transmit)4

Unused5

Unused6

Unused7

Unused8

Rx3 (Receive)9

Rx2 (Receive)10

Table 31: QSFP+ and QSFP28 Optical Module Receptacle Pinouts (continued)

SignalFiber

Rx1 (Receive)11

Rx0 (Receive)12

Table 32: QSFP+ MPO Fiber-Optic Crossover Cable Pinouts

PinPin

121

112

103

310

211

112

Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion

IN THIS SECTION

Signal Loss in Multimode and Single-Mode Fiber-Optic Cables | 95

Attenuation and Dispersion in Fiber-Optic Cable | 95

To determine the power budget and power margin needed for fiber-optic connections, you need to understand how signal loss, attenuation, and dispersion affect transmission. The QFX Series uses various types of network cables, including multimode and single-mode fiber-optic cables.

Signal Loss in Multimode and Single-Mode Fiber-Optic Cables

Multimode fiber is large enough in diameter to allow rays of light to reflect internally (bounce off the walls of the fiber). Interfaces with multimode optics typically use LEDs as light sources. However, LEDs are not coherent light sources. They spray varying wavelengths of light into the multimode fiber, which reflect the light at different angles. Light rays travel in jagged lines through a multimode fiber, causing signal dispersion. When light traveling in the fiber core radiates into the fiber cladding (layers of lower refractive index material in close contact with a core material of higher refractive index), higher-order mode loss occurs. Together, these factors reduce the transmission distance of multimode fiber compared to that of single-mode fiber.

Single-mode fiber is sosmall indiameter that rays of light reflect internally through one layer only.Interfaces with single-mode optics use lasers as light sources. Lasers generate a single wavelength of light, which travels in a straight line through the single-mode fiber. Compared to multimode fiber, single-mode fiber has a higher bandwidth and can carry signals for longer distances. It is consequently more expensive.

For information about the maximum transmission distance and supported wavelength range for the types of single-mode and multimode fiber-optic cables that are connected to the QFX Series, see the Hardware

Compatibility Tool. Exceeding the maximum transmission distances can result in significant signal loss,

which causes unreliable transmission.

Attenuation and Dispersion in Fiber-Optic Cable

An optical data link functions correctly provided that modulated light reaching the receiver has enough power to be demodulated correctly. Attenuation is the reduction in strength of the light signal during transmission. Passive media components such as cables, cable splices, and connectors cause attenuation. Although attenuation is significantly lower for optical fiber than for other media, it still occurs in both

multimode and single-mode transmission. An efficient optical data link must transmit enough light to overcome attenuation.

Dispersion is the spreading of the signal over time. The following two types of dispersion can affect signal transmission through an optical data link:

Chromatic dispersion, which is the spreading of the signal over time caused by the different speeds of

•

light rays.

Modal dispersion, which is the spreading of the signal over time caused by the different propagation

•

modes in the fiber.

For multimode transmission, modal dispersion, rather than chromatic dispersion or attenuation, usually limits the maximum bit rate and link length. For single-mode transmission, modal dispersion is not a factor. However, at higher bitrates and over longer distances, chromatic dispersionlimits the maximum link length.

An efficient optical data link must have enough light to exceed the minimum power that the receiver requires to operate within its specifications. In addition, the total dispersion must be within the limits specified for the type of link in the Telcordia Technologies document GR-253-CORE (Section 4.3) and International Telecommunications Union (ITU) document G.957.

When chromatic dispersion is at the maximum allowed, its effect can be considered as a power penalty in the power budget. The optical power budget must allow for the sum of component attenuation, power penalties (including those from dispersion), and a safety margin for unexpected losses.

Calculating Power Budget and Power Margin for Fiber-Optic Cables

Use the information in this topic and the specifications for your optical interface to calculate the power budget and power margin for fiber-optic cables.

TIP: You can use the Hardware Compatibility Tool to find information about the pluggable

transceivers supported on your Juniper Networks device.

To calculate the power budget and power margin, perform the following tasks:

How to Calculate Power Budget for Fiber-Optic Cable | 97

How to Calculate Power Margin for Fiber-Optic Cable | 97

How to Calculate Power Budget for Fiber-Optic Cable

To ensure that fiber-optic connections have sufficient power for correct operation, you need to calculate the link's power budget, which is the maximum amount of power it can transmit. When you calculate the power budget, you use a worst-case analysis to provide a margin of error, even though all the parts of an actual system do not operate at the worst-case levels. To calculate the worst-case estimate of power budget (PB), you assume minimum transmitter power (PT) and minimum receiver sensitivity (PR):

PB= PT– P

The following hypothetical power budget equation uses values measured in decibels (dB) and decibels referred to one milliwatt (dBm):

PB= PT– P

PB= –15 dBm – (–28 dBm)

PB= 13 dB

How to Calculate Power Margin for Fiber-Optic Cable

After calculating a link's power budget, you can calculate the power margin (PM), which represents the amount of power available after subtracting attenuation or link loss (LL) from the power budget (PB). A worst-case estimate of PMassumes maximum LL:

PM= PB– LL

PMgreater than zero indicates that the power budget is sufficient to operate the receiver.

Factors that can cause link loss include higher-order mode losses, modal and chromatic dispersion, connectors, splices, and fiber attenuation. Table 33 on page 97 lists an estimated amount of loss for the factors used in the following sample calculations. For information about the actual amount of signal loss caused by equipment and other factors, refer to vendor documentation.

Table 33: Estimated Values for Factors Causing Link Loss

Estimated Link-Loss ValueLink-Loss Factor

Higher-order mode losses

Modal and chromatic dispersion

Single mode—None

Multimode—0.5 dB

Single mode—None

Multimode—None, if product of bandwidth and distance is less than 500 MHz-km

Table 33: Estimated Values for Factors Causing Link Loss (continued)

Estimated Link-Loss ValueLink-Loss Factor

0.5 dBConnector

0.5 dBSplice

Fiber attenuation

Single mode—0.5 dB/km

Multimode—1 dB/km

The following sample calculation for a 2-km-long multimode link with a power budget (PB) of 13 dB uses the estimated values from Table 33 on page 97 to calculate link loss (LL) as the sum of fiber attenuation

(2 km @ 1 dB/km, or 2 dB) and loss for five connectors (0.5 dB per connector, or 2.5 dB) and two splices (0.5 dB per splice, or 1dB) aswell as higher-order mode losses (0.5 dB). The power margin (PM) is calculated

as follows:

PM= PB– LL

PM= 13 dB – 2 km (1 dB/km) – 5 (0.5 dB) – 2 (0.5 dB) – 0.5 dB

PM= 13 dB – 2 dB – 2.5 dB – 1 dB – 0.5 dB

PM= 7 dB

The following sample calculation for an 8-km-long single-mode link with a power budget (PB) of 13 dB uses the estimated valuesfrom Table 33 on page 97 to calculate link loss (LL) as thesum of fiber attenuation

(8 km @ 0.5 dB/km, or 4 dB) and loss for seven connectors (0.5 dB per connector, or 3.5 dB). The power margin (PM) is calculated as follows:

PM= PB– LL

PM= 13 dB – 8 km (0.5 dB/km) – 7(0.5 dB)

PM= 13 dB – 4 dB – 3.5 dB

PM= 5.5 dB

In both examples, the calculated power margin is greater than zero, indicating that the link has sufficient power for transmission and does not exceed the maximum receiver input power.

RELATED DOCUMENTATION

Maintaining Transceivers and Fiber Optic Cables on a QFX5220 | 161

QFX5220 Management Cable Specifications and Pinouts

IN THIS SECTION

Cable Specifications for Console and Management Connections for the QFX Series | 99

RJ-45 Management Port Connector Pinout Information | 100

Console Port Connector Pinouts for the QFX Series | 100

QSFP-DD Port Connector Pinout Information | 101

QSFP+, QSFP28, and QSFP56 Port Connector Pinout Information | 105

SFP, SFP+, and SFP28 Port Connector Pinout Information | 107

USB Port Specifications for the QFX Series | 108

Cable Specifications for Console and Management Connections for the QFX Series

Table 34 on page 99 lists the specifications for the cables that connect the QFX Series switch to a

management device.

NOTE: The QFX Series canbe configured with SFP management ports that support1000BASE-SX

transceivers. See the Hardware Compatibility Tool for more on the fiber-optic cables required for use with these transceivers.

Table 34: Cable Specifications for Console and Management Connections for the QFX Series

Port on QFX Series Device

Console port

RS-232 (EIA-232) serial cable

One 7-foot(2.13-meter) long RJ-45 patch cable and RJ-45 to DB-9 adapter

Maximum LengthCable SuppliedCable Specification

(2.13 meters)

Device Receptacle

RJ-457 feet

Table 34: Cable Specifications for Console and Management Connections for the QFX Series (continued)

100

Port on QFX Series Device

Management port

Category 5 cable or equivalent suitable for 1000BASE-T operation

One 7-foot(2.13-meter) long RJ-45 patch cable

Maximum LengthCable SuppliedCable Specification

(100 meters)

Device Receptacle

RJ-45328 feet

RJ-45 Management Port Connector Pinout Information

Table 35 on page 100 provides the pinout information for the RJ-45 connector for the management port

on Juniper Networks devices.

Table 35: RJ-45 Management Port Connector Pinout Information

DescriptionSignalPin

Transmit/receive data pair 1TRP1+1

Transmit/receive data pair 1TRP1—2

Transmit/receive data pair 2TRP2+3

Transmit/receive data pair 3TRP3+4

Transmit/receive data pair 3TRP3—5

Transmit/receive data pair 2TRP2—6

Transmit/receive data pair 4TRP4+7

Transmit/receive data pair 4TRP4—8

Console Port Connector Pinouts for the QFX Series

The console port (labeled CON, or CONSOLE) is an RS-232 serial interface that uses an RJ-45 connector to connect to a console management device. The default baud rate for the console port is 9600 baud.

Juniper QFX5220 Hardware Guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

About the Documentation

Documentation and Release Notes

Using the Examples in This Manual

Merging a Full Example

Merging a Snippet

Documentation Conventions

Documentation Feedback

Requesting Technical Support

Self-Help Online Tools and Resources

Creating a Service Request with JTAC

Overview

QFX5220 System Overview

QFX5220-128C Switch Description

Benefits of the QFX5220-128C

QFX5220-32CD Switch Description

Benefits of the QFX5220-32CD

QFX5220 Hardware Component Overview

System Software

QFX5220 Component Redundancy

QFX5220 Field-Replaceable Units

QFX5220-32CD Port Panel

Network Ports

Setting Port Speed and Channelization

QFX5220-32CD Network LEDs

QFX5220-128C Port Panel

Overview

Network Ports

Port Configurations

100-Gbps Port Configuration

40-Gbps Port Configuration

4 x 25 Gbps Port Channelization

Delete 4 x 25 Gbps or 4 x 10 Gbps Port Channelization

QFX5220-128C Network LEDs

QFX5220 Management Panel

QFX5220-128C Management Panel Overview

QFX5220-32CD Management Panel Overview

QFX5220-32CD Management Panel LEDs

QFX5220 Chassis Status LEDs

RJ-45 Management Port LEDs

QFX5220 Cooling System

QFX5220-128C Cooling System Description

Fan Modules

QFX5220-128C Fan Module LED

QFX5220-32CD Cooling System Description

Fan Modules

Do Not Install Components with Different Airflow or Wattage in the Switch

QFX5220-32CD Fan Module LED

Fan Module Status

QFX5220 Power System

QFX5220 AC Power Supply Modules Description

QFX5220 AC Power Specifications

AC Power Cord with Type C13 Coupler Specifications

AC Power Cord with Type C15 Coupler Specifications

QFX5220 AC Power Supply LEDs

QFX5220 DC Power Supply Description

QFX5220 DC Power Specifications

QFX5220-128C DC Power Cable Specification

QFX5220-128C DC Power Supply LED

QFX5220-32CD-D DC Power Supply LED

QFX5220 Site Preparation Checklist

QFX5220 Site Guidelines and Requirements

QFX5220 Environmental Requirements and Specifications

General Site Guidelines

QFX5220 Grounding Cable and Lug Specifications

QFX5220 Clearance Requirements for Airflow and Hardware Maintenance

QFX5220 Chassis Physical Specifications

Site Electrical Wiring Guidelines

QFX5220 Rack Requirements

QFX5220 Cabinet Requirements

QFX5220 Network Cable and Transceiver Planning

Determining QFX5220 Optical Interface Support

Cable Specifications for QSFP+ and QSFP28 Transceivers

Understanding QFX Series Fiber-Optic Cable Signal Loss, Attenuation, and Dispersion

Signal Loss in Multimode and Single-Mode Fiber-Optic Cables

Attenuation and Dispersion in Fiber-Optic Cable